How We’re Fooled By Statistics

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  • Опубликовано: 1 янв 2025

Комментарии • 4,9 тыс.

  • @seifer666
    @seifer666 11 лет назад +18054

    One of your better videos
    It is unfortunate that your next likely will not be as good.

    • @veritasium
      @veritasium  11 лет назад +5517

      let's hope skill plays a much larger role in my video creation than luck! ;)

    • @elijahfoster2
      @elijahfoster2 9 лет назад +138

      ***** I don't think you understood the video

    • @umnikos
      @umnikos 9 лет назад +42

      and you were right ;)

    • @codelab7379
      @codelab7379 8 лет назад +36

      +Veritasium exactly what i thought of when i saw the RtotheM concept. where does skill come in? - Carol Dweck's science seems to indicate one must praise the effort (though that too with a pinch of salt). Chess GMs become better by consistent application of certain principles - why not fighter pilots too? how does RTTM stack up in case of skilling?
      how much can things be applied to luck? is it always a lack of skill?

    • @xelaxander
      @xelaxander 8 лет назад +66

      +Ravi Srini I guess skill determines how high the average is. If you can achieve a high average quality in videos, as it is on this channel, your youtubing skills can't be particularly bad. XD

  • @littlebrother82
    @littlebrother82 3 года назад +974

    The book "the talent code" talks about the appropriate style of feedback according to skill level. A beginner needs more encouragement to improve, regardless of immediate outcomes, but relative expert is engaged and needs no encouragement, but they still require detailed feedback in order to correct their mistakes. Reversing those, I could see beginners giving up out of frustration, and experts rolling their eyes, feeling like their time is being wasted.

    • @danaolsongaming
      @danaolsongaming 3 года назад +33

      Also check out "Thinking Fast and Slow." It's an amazing book that discusses the way our mind operates and how we trick ourselves constantly with data-related events.

    • @notyetdeleted6319
      @notyetdeleted6319 3 года назад +6

      Mmmm, think it works better to pick apart every fail and flaw of beginners, they improve faster, work harder, and the ones you don’t want, (people who give up) leave due to frustration.
      Everyone is frustrated, everyone is unhappy, but results improve.

    • @TheKripox
      @TheKripox 3 года назад +60

      @@notyetdeleted6319
      This just seems silly. As Veritasium mentioned, most research indicates that positive feedback is more effective than negative feedback. Obviously if something is being done wrong it needs to be corrected, but leaning more towards praise than reprimands is widely believed to be the way to go. This idea that beginners will work harder when harshly criticised MIGHT have some merit in cases where they were already highly motivated to begin with, since at least then they are unlikely to quit immediately, but even then it seems suspect.
      Besides, results are never the best when everyone is frustrated and unhappy. Unhappy people are unproductive people in the long term, misery isn't good and misery isnt attractive. If the place makes everyone feel bad then people will want to leave. Why do something/work somewhere that makes your life worse when you could do something more enjoyable, right. Those who have the option to leave likely will.

    • @FairyRat
      @FairyRat 3 года назад +2

      Makes a lot of sense.

    • @ericdew2021
      @ericdew2021 3 года назад +20

      @@notyetdeleted6319 That's not going to work. Beginners (in a sport, say) have options. They have no interest in working harder or improving faster if they're being nitpicked at every step. They'll pick a different sport, or a different coach.

  • @besmart
    @besmart 11 лет назад +2383

    So, theoretically, we could watch or not watch this video, like it or dislike it, share it or not share it, and the next Veritasium video will either be better or worse? :)

    • @meh23p
      @meh23p 11 лет назад +149

      Only if you find it to be either, respectively, significantly worse or significantly better than usual.

    • @sydthegoat88
      @sydthegoat88 11 лет назад +6

      meh LOL

    • @summershine0360
      @summershine0360 11 лет назад +4

      @morris994 Hi there time to clean the browser history again :/

    • @bigballsgame5591
      @bigballsgame5591 11 лет назад +2

      :))))))

    • @hypercuriosity9828
      @hypercuriosity9828 7 лет назад +8

      It's Okay To Be Smart I love your channel Bro

  • @Krekkertje
    @Krekkertje 3 года назад +884

    Can we all take a moment to appreciate how good Derek is at drawing bell curves?

    • @haulin
      @haulin 2 года назад +26

      Just look at that steady hand 2:15

    • @ityaboidavid2.0
      @ityaboidavid2.0 2 года назад +4

      @@haulin SHESH!!!

    • @ultimateman55
      @ultimateman55 2 года назад +73

      Unfortunately after he draws a particularly good one the next few seem to be not quite as good...

    • @lucienz1846
      @lucienz1846 Год назад +4

      @@ultimateman55 Pretty cool how this kinda applies to the topic of the video. A cool coincidence.

    • @liptontea4876
      @liptontea4876 Год назад +8

      @@lucienz1846that’s the joke

  • @chungdha
    @chungdha 11 лет назад +273

    I have to say constructional feedback is the best I hate when teachers give me an a- without explaining why it's not an a+ just because they say there is room of improvement or it's a way so I would keep try harder. It's better to actually know what I did wrong and how it can improve.

    • @Agnemons
      @Agnemons 4 года назад +5

      You need to figure out for your self what you need to do to improve. You won't always have a teacher there to guide you.

    • @SherrifOfNottingham
      @SherrifOfNottingham 4 года назад +43

      I had a teacher that would give you a 93 whenever you had a perfect score, there was no way to score higher.
      It bred a hostile environment where no student strived to even try leading to her class eventually having the worst grades of all the other teachers of her subject. Fact is, if you want to motivate students you can't use negativity to hope to get anywhere, that myth that "there's always room for improvement" makes no sense on a test where a perfect score is a 93, all it does is mean that one failure is a B, making the goal beyond perfection leads to being a demotivational tool. It's like forcing your first year science kids to land a probe on the moon, they are going to take one look at the goal and blow your class off to watch cartoons since doing the impossible isn't worth thinking about.

    • @chungdha
      @chungdha 4 года назад +17

      ​@@SherrifOfNottingham Yes, that is what happened as I clearly took a lot of time for a project and made it as best as possible and next kid who just flunk something together get same score. I was like damn I don't need to do my best, just deliver something that is good enough and not even care about that class anymore. It only demotivated the good students and not even motivate the bad students to do any better. While teacher that really improved the class motivation to improve their work showed the best projects to the class after, so all can learn differences between their own project with theirs and know how to improve or strive for.

    • @zappyapp
      @zappyapp 4 года назад +47

      @@Agnemons I hate the "You won't always have a ___ with you" argument

    • @SgtSupaman
      @SgtSupaman 4 года назад +49

      @@Agnemons , yep, nothing teaches better than the ole "figure it out yourself" method... \s
      The entire point of having the teacher there is for them to teach. Don't excuse them not doing their job.

  • @MilanVucic94
    @MilanVucic94 3 года назад +60

    I read about this exact example in Daniel Kahneman's book "Thinking, fast and slow". It is an amazing example of a fallacy we're primed to believe since a young age, which actually proves detrimental to both the performance and mental well-being of a person always being reprimanded. It is just one of the many quirks of our mind that Daniel explores in the book, a big recommendation.

  • @whippycream1
    @whippycream1 4 года назад +912

    I appreciate that you had to film yourself 49 times for those classroom shots!

    • @neurofiedyamato8763
      @neurofiedyamato8763 4 года назад +105

      I appreciate you counted.

    • @SuperMaDBrothers
      @SuperMaDBrothers 4 года назад +32

      I would like this comment but it has 49 likes

    • @pratiklomte
      @pratiklomte 4 года назад +4

      @@SuperMaDBrothers then what's the problem?_

    • @kentvincentllano
      @kentvincentllano 3 года назад +22

      I appreciate your appreciation for him!

    • @cesaralvarez202
      @cesaralvarez202 3 года назад +17

      I appreciate that you appreciate the appreciation

  • @misery8264
    @misery8264 2 года назад +11

    I started a new job and my confidence in my skills isnt that high yet, but the guy teaching me believs in me. He sends me off doing stuff as if its nothing, even though it makes me nervous. That makes me proud, and I want to prove myself. So I try very very hard until I get it right. If he wouldnt believe in me, I'd be discouraged.

  • @Alex-fu4md
    @Alex-fu4md 10 лет назад +441

    2:13 Question #1 was really, really, really, really unfair.

    • @Aweseb64
      @Aweseb64 10 лет назад +46

      Most of them actually have no answer, that one is just a more well known paradox.

    • @albertpolak786
      @albertpolak786 9 лет назад +57

      And the first student (the good one) circled both answers in that question and scored 1/2 point. WTF? I should try this tactique at school.

    • @trulyUnAssuming
      @trulyUnAssuming 9 лет назад +4

      ***** but if it is true that it is a lie and a lie is another word for wrong, the statement is also wrong. So you can't really say it is true. Can you?

    • @trulyUnAssuming
      @trulyUnAssuming 9 лет назад +2

      ***** The point is - how can you correct an answer if there is no correct answer? So which one in the test was true? Would I have to tick true or false to get full points. Becasue in theory you would need to tick both. But Albert Polák said for this you would only get 1/2 points. So what is someone expected to do?
      So I thought you might have proof, if you state with that much conficence that it was true. But it doesn't seems like it ;-)

    • @BlueSun_
      @BlueSun_ 9 лет назад +8

      Alex Jones The answer is simple it's false. Because the statement is referring to itself saying that it is both true and false (whenever you state something your implying that it is true [there is a bear here = it is true that there is a bear here]). Since this breaks the law of noncontradiction, the statement is false.

  • @amaldabe
    @amaldabe 7 лет назад +664

    I wish my teacher would say "Great work!" whenever I got a 61/100.

    • @archockencanto1645
      @archockencanto1645 4 года назад +7

      Well that's pretty bad soo... Donno why he would (if he genuinely said that instead of just blurting put good work to every student regardless of their scores).

    • @TrickShotKoopa
      @TrickShotKoopa 4 года назад +28

      @@archockencanto1645 It would be a lie to make him feel better. The original comment is clearly for humorous purposes anyway, so I'm not sure why you're taking it so seriously and acting rude.

    • @archockencanto1645
      @archockencanto1645 4 года назад +2

      @@TrickShotKoopa What a snowflake generation. Now this is called rude and everything ever is a joke so some weasel has a way out always. God help us from the hole we're going to.

    • @TrickShotKoopa
      @TrickShotKoopa 4 года назад +24

      @@archockencanto1645 Not everything is a joke. I find it unfortunate that you are incapable of distinguishing between a joke and a statement. Regardless, you seem quite pessimistic about life, so I hope you find something which makes you happy.

    • @archockencanto1645
      @archockencanto1645 4 года назад

      @@TrickShotKoopa You just lack the experience because of your age. You will realise reality in 10-15 years.

  • @BhanuPChauhan
    @BhanuPChauhan 9 лет назад +535

    2:22
    Name: Jimmy Neutron
    Student # : 1.675 x 10^(-27)

    • @vibodhj349
      @vibodhj349 6 лет назад +4

      lol

    • @aidanginise
      @aidanginise 6 лет назад

      Thank you

    • @coolmodad
      @coolmodad 5 лет назад +1

      Clever

    • @divyanshasthana3014
      @divyanshasthana3014 5 лет назад +1

      Thats a good eye you got

    • @Sgrunterundt
      @Sgrunterundt 5 лет назад +22

      @@deletedchannel9945 And he got a point for answering that Veritasium is a real element in question two. You can see the questions at 2:10.

  • @ubaft3135
    @ubaft3135 3 года назад +291

    Selecting both answers on the question "This statement is a lie" and receiving 1/2 points is next level IQ

    • @guilhermebarcelos115
      @guilhermebarcelos115 3 года назад +4

      Or maybe just leave them blank

    • @stevenscott2136
      @stevenscott2136 3 года назад +10

      Those questions aren't all truly meaningless. For example, someone with a moderate knowledge of the periodic table (or Latin) will know that Veritasium is NOT an element. So there is a non-random factor in this allegedly random test.

    • @Unh0ly0ne
      @Unh0ly0ne 3 года назад +26

      @@stevenscott2136 The premise was that the people taking the test do not know any answer and therefore have to guess everything, thus making it completly random. The questions provided on the test prop were a gimmick for your entertainment, or lack thereof.

    • @VVayVVard
      @VVayVVard 2 года назад +4

      @@guilhermebarcelos115 Not answering usually means 0 points.
      But if you choose both, one of which must be true, by definition, you will necessarily be awarded 1/2 points. And this is the maximum you can obtain on this question; after all, if you only choose one, it will instantly become the wrong answer.

    • @guilhermebarcelos115
      @guilhermebarcelos115 2 года назад

      @@VVayVVard I think it would be paradoxical and neither of which are correct, so leaving them blank would be “more correct”, specially if the wrong answer has a negative connotation. With that said, when choosing both you would not be half right, you would be double wrong!

  • @TheThomasBarry
    @TheThomasBarry 9 лет назад +1729

    I wish my dad was smart enough to know this when I was growing up.

    • @dbgrfdg
      @dbgrfdg 7 лет назад +88

      :'(

    • @pawelregulski8967
      @pawelregulski8967 7 лет назад +108

      dbgrfdg Your profile picture contradicts your comment.

    • @snoopl2898
      @snoopl2898 6 лет назад +28

      With most negative parents it wouldn't have mattered.

    • @srinivaskari
      @srinivaskari 6 лет назад +104

      dad....I wish my teachers in school and college were smart like Derek while I was growing up. Fathers being smart is a matter of luck. Teachers being smart is a matter of government policy.

    • @Philo-ul2uq
      @Philo-ul2uq 6 лет назад +6

      @@srinivaskari government policy often fails.

  • @DaniloSilva-wf2zp
    @DaniloSilva-wf2zp 5 лет назад +77

    This was such a serious lecture. Congrats for the work done

  • @tahroo4262
    @tahroo4262 11 лет назад +15

    Most of my thought pattern on this video went from "Hey, this is like what Jeffrey Lin is doing for Riot and League of Legends!" to... "Woo, where did he find chalkboards?"

  • @rsedan
    @rsedan 3 года назад +39

    A great video. I kept wishing that you would clarify that it isn't that *the next* event is likely to be better (after doing unusually poorly) or worse (after doing unusually well). It is that *any* event is likely to be average (by definition). There is nothing special about the next event. Thanks for a thoughtful video!

    • @dallaswood4117
      @dallaswood4117 3 года назад +1

      Yep I caught that too it isn’t up down up down like wave lengths around the mean it is that most outcomes will be around the mean with more infrequent extreme highs and lows that’s literally what the bell curve shape represents

    • @disklamer
      @disklamer Год назад

      There is a great likeliness of the next performance being somewhat different though. Different within the average, but still.

  • @Yerg20
    @Yerg20 8 лет назад +21

    That distribution at 2:18 was drawn brilliantly

    • @derbasti1586
      @derbasti1586 3 года назад +14

      unfortunately it wont be drawn as brilliantly next time

  • @shawnyellowbird5358
    @shawnyellowbird5358 3 года назад +65

    This is ALOT of effort to explain our last Golf outing, dude...

  • @jerryoconnor9133
    @jerryoconnor9133 3 года назад +75

    I feel like regression of the mean is something I’ve applied so much in my life but never actually knew about.

  • @JHJHJHJHJH
    @JHJHJHJHJH 6 месяцев назад +3

    5:35 Paused it to note;
    I try to explain this to people who are afraid to say the word "quiet" when working.
    They claim that the moment you say "It's quiet tonight" all hell breaks loose.
    If you spend enough time in boring or quiet situations then eventually something will happen again.
    You've noticed it's quiet and you've noticed things happen when you've noticed it's quiet.
    Stuff happens if you don't notice and things stay quiet when you do notice. But the times when you said it was quiet and then things happened tend to stick out.
    See also the idea that full moons cause crazy behaviour.
    I've seen crazy stuff happen the other 27 days of the month and I've seen full moons where nothing of note has happened. But There's a mental bias for some people of thinking that tings which happen less frequently are causing situations.
    If you believe that then you tend to discount those 27 days of incidents and only notice the one when it happens to be a full moon. You confirm yout theory every month. Except when it's quiet and then you just ignore it.

  • @Wifi_Cable
    @Wifi_Cable 11 лет назад +24

    This is why I love science. I clicked on this video thinking... why is a physicist talking about psychology? Why?
    Because science has to take into account all sides, this is one many people probably overlook.

  • @deschia_
    @deschia_ 5 лет назад +42

    Man these veritasium videos from the ancient times sure are starting to surface again on my feed.

    • @Miju001
      @Miju001 3 года назад +1

      Oh man I hadn't even noticed this video was so old

  • @Fai9aalTS
    @Fai9aalTS 6 лет назад +12

    This concept is very underrated and is really hard to integrate from a raw thought into an explainable concept

  • @lucyfyrearchoftwilight1760
    @lucyfyrearchoftwilight1760 3 года назад +415

    I'm surprised he didn't bring up the fact that the test was poorly executed anyway. What they should have done was to give negative feedback to both groups and then, to other test groups, give positive feedback to both groups. That would help reduce "regression to the mean" as a factor.

    • @Mothuzad
      @Mothuzad 3 года назад +35

      I was thinking along these lines as well. It's not even that controlling the test would mitigate regression to the mean, but it would eliminate the bias of selecting pilots for praise/reprimand based on their skill level.

    • @melkbot
      @melkbot 3 года назад +2

      Wouldn't this just increase the group size, rather than solving regression to the mean?

    • @lucyfyrearchoftwilight1760
      @lucyfyrearchoftwilight1760 3 года назад +12

      @@melkbot Yes but it would also reduce undesirable factors that would taint the results.

    • @MaxLohMusic
      @MaxLohMusic 3 года назад +30

      He did briefly mention that this is why control groups are so important

    • @WTFBOOMDOOM
      @WTFBOOMDOOM 3 года назад +18

      And the testosterone thing... Chances are that the players with higher testosterone generally are better.

  • @shorifulhaque5137
    @shorifulhaque5137 4 года назад +64

    2:20 That's a nicely drawn curve, Derek. Well done.

    • @nathanwaltrip7220
      @nathanwaltrip7220 3 года назад +15

      But then the next curve he drawn was pretty crappy. I guess his video right then ehh?

    • @shorifulhaque5137
      @shorifulhaque5137 3 года назад

      @@nathanwaltrip7220 Circle of lif- regression

  • @kikook222
    @kikook222 11 лет назад +13

    I was told, by many psychology professors, that punishment is very effective at promoting or deterring behavior, it's actually too effective. However, negative reinforcement and positive reinforcement are usually better at keeping the desired behavior more habitual. When using a punishment paradigm you risk the chance the undesired behavior comes back when the punishment is no longer present. It's true to positive and negative reinforcement, I believe they call it extinction, but it isn't as detrimental as punishment.
    Just to clarify, negative reinforcement is not punishment. It is escaping a stimulus that is aversive, which ends up becoming a behavior. Ex. Some people put their seat belt on because they don't want to hear the sound of the seat bell alarm. They are trying to escape that stimulus but aren't being punished by it. Punishment is a stimulus given after a behavior that's meant to be aversive but isn't present before the the behavior.

  • @mattskord9178
    @mattskord9178 3 года назад +123

    “The negative feedback was a harsh reprimand and the positive feedback was a 👍🏻”
    Seems uneven but ok

    • @markplain2555
      @markplain2555 3 года назад +14

      Exactly my thought. The school policy of emphasizing positive feedback is as effective as negative feedback. How about a balanced approach: you got it wrong your are told, "you got it wrong". You get it it right, "you are told you get it right"
      .
      As for 'encouragement': the more you practice, the luckier you get.

    • @TheBaggyT
      @TheBaggyT 3 года назад +6

      @@markplain2555 As a Maths teacher (not in the US), I feel devastated every time I hear of people simply being told "you got it wrong". To me, that's a terrible teacher. Whenever I use that red cross of doom, there is always a comment next to it which explains what the issue is. A cross by itself is ridiculous and never helps anyone learn. But then, maybe I'm the exception... I don't know if many other teachers do the same. All I know is that many of my students tell me that I give the best feedback of any teacher they've ever had.
      Negative feedback sounds like an insult. Getting something wrong should still have positive feedback with it.

    • @deletioninducedin7days919
      @deletioninducedin7days919 3 года назад

      @@TheBaggyT I feel like you're kinda "detrementing" them for the future of their education (no offence). Imagine that same class going on to have another teacher who puts a cross instead of any positive feedback on wrong answers. Anyways, have your students performed better in other tests because I find this topic very interesting? lol

    • @TheBaggyT
      @TheBaggyT 3 года назад

      @@deletioninducedin7days919 Not sure what you're getting at, but yes, my students regularly perform better than other students in their year. The only exception is when I'm teaching a very low ability class, but even then, they often out-perform the expectations of the head of maths.

    • @tatri292
      @tatri292 3 года назад +1

      @@TheBaggyT Tests/exams are a learning experience too. Obviously you should already know the material for best results but that's not always realistic. People learn from their mistakes but not being told what went wrong hampers that learning.

  • @bobcatgaze
    @bobcatgaze 3 года назад +2

    The United States Army has already developed a solution to this. It's called the "After Action Review" and I find that it's a wholly superior method.
    It consists of the following phases.
    1. Review of what our goals were.
    2. Review of what actually happened. Did we accomplish those goals?
    3. What did we do well that helped us accomplish those goals?
    4. What did we mess up, and how can we improve more for next time?
    5. Develop a more refined game plan for next time.
    This takes the 'punishment' element and puts it in a more constructive light. One takes an honest look at what actions could have resulted in failure, but ONLY with the understanding that we're in a learning process.
    Punishments/chastisement rarely ever logically work anyway, because:
    1. All chastisement runs the risk of demotivating anyone.
    2. Those who are truly motivated to do better will continue to do so in spite of the chastisement.
    3. Those who are NOT truly motivated to do better will not improve anyway... and require a better incentive (i.e a reward) in order to improve.
    This is why the Army focuses on positive feedback, and straightforward constructive criticism.
    Now, before anyone starts telling me "Then why do Drill Instructors always yell at new enlistees?"
    That is because they are being trained for stress resilience. It is mental hardening. That's a different exercise entirely.

  • @BaieDesBaies
    @BaieDesBaies 4 года назад +176

    "This statement is a lie" True/False
    LMAO dude you got me 😄

    • @holl0918
      @holl0918 3 года назад

      "Nothing is true all the time."

    • @capitão_paçoca
      @capitão_paçoca 3 года назад +1

      Is Veritasium a real element?

    • @bruhbroham8760
      @bruhbroham8760 3 года назад +1

      @@capitão_paçoca no

    • @BrianOSheaPlus
      @BrianOSheaPlus 3 года назад +12

      @@capitão_paçoca Veritasium is a made-up element name. It's a pun on the Latin word for truth, and is meant to convey the meaning of "an element of truth". For some trivia, they gave it the atomic number 42 as a reference to Douglas Adams' book The Hitchhiker's Guide to the Galaxy. However, 42 is actually the atomic number of the real element molybdenum.

    • @capitão_paçoca
      @capitão_paçoca 3 года назад +1

      @@bruhbroham8760 I didn't ask this. It was on the test.

  • @phillipjones2278
    @phillipjones2278 4 года назад +14

    It’s important to qualify that the concept of regressing to the mean is only as powerful as the inherent variability in case-by-case performance. Human behavior is not entirely dictated by random chance so this concept doesn’t necessarily speak to the effectiveness on negative or positive feedback in relatively controllable circumstances (such as encouraging or discouraging behaviors brought about by conscious choice)

  • @acruzp
    @acruzp 10 лет назад +711

    I'm torn between my love for Veritasium and my love for Vsauce.

    • @cars_and_coffee_by_bruno
      @cars_and_coffee_by_bruno 9 лет назад +47

      Toss a coin and see which one you like best.

    • @Treblaine
      @Treblaine 9 лет назад +128

      Subscribe to both so that youtube can hide both of their latest updates from you.
      Seriously youtube. I subscribe and my homepage is entirely full of "Watch it again" "Recommended" and other crap OTHER THAN MY ACTUAL SUBSCRIPTIONS!

    • @acruzp
      @acruzp 9 лет назад

      Treblaine well change your settinfs

    • @Treblaine
      @Treblaine 9 лет назад +2

      Andres .C I fiddled with them before and got nowhere. I guess I'll try again.

    • @WinterandNoodle
      @WinterandNoodle 9 лет назад +13

      Treblaine There is a thing called "My subscriptions." it will show the latest video of the channel that you subscribe. ruclips.net/user/feedsubscriptions

  • @aaamos16
    @aaamos16 Год назад +1

    I learned two things:
    1. Go to the casino more often.
    2. Traffic cameras are stupid.
    😂

  • @asket6509
    @asket6509 5 лет назад +83

    "Not Quite my Tempo!"

    • @Ignirium
      @Ignirium 4 года назад +13

      "why do you suppose I just hurled a chair at your head Neiman?"

  • @AngleCoreWow
    @AngleCoreWow 11 лет назад +11

    THE DIFFERENCE IS GROUP VS SINGLE CADET.... a group is able to converse and feel an emotion towards something in unison, thus strengthening said emotion. A single cadet is alone and unable to feel with his comrades, making it an all around internal battle, rather than external,(as a team would do). It's really easy to think about if you just put your self into those situations.

  • @ShougoAmakusa
    @ShougoAmakusa 11 лет назад +5

    An important video for people currently in university or otherwise writing scientific papers. You'll understand why when you watch it.
    Also when it comes to positive vs negative feedback to students and players, keeping someone's attitude and outlook on life feels more important than rubbing in their performance on previous tasks(both positively and negatively).

  • @aaryan9058
    @aaryan9058 5 месяцев назад +1

    Great Video!
    So sad the next video might not be as great as this one.

  • @ashwith
    @ashwith 11 лет назад +16

    What I learned from this video: Derek has the ability to take something which I found really dull (statistics) and turn it into the most interesting thing I've seen today :-)

    • @Sammysapphira
      @Sammysapphira 11 лет назад +12

      Statistics ifs far from dull. The only difference is it's not a 60 year old downie reading facts from a book.

    • @ashwith
      @ashwith 11 лет назад +2

      benblue3 I don't disagree with you after watching this video :-)

    • @Kram1032
      @Kram1032 11 лет назад +5

      The thing is, he started with the motivation to a subject, and it is a good motivation, so the way in which it relates to statistics actually is interesting.

  • @descai10
    @descai10 10 лет назад +9

    Its simple.
    When you get good feedback, you think you do really good at it, and because of that, think you don't have to try as hard. But it can help you have some
    confidence in yourself.
    Negative feedback will make you try to get better to make sure you do it better the next time, but to much negative feedback can make you give up.
    The best is a mix between the two.

  • @TheHiddenbox1
    @TheHiddenbox1 11 лет назад +8

    as a highschool student i can tell you now that we tend to do better if promised a reward

    • @isa.sharif
      @isa.sharif 11 лет назад

      I see the same thing in my school, when a teacher promises us a reward, everyone tries his best to be the winner, even when we find out the reward isn't really valuable.
      But when the teacher whoever doesn't do well in an exam, or a class, it makes most students don't even try answering, because they fear to make a mistake, which really doesn't help them.
      But a teacher once told a student who has bad grades and never does a good thing in class to solve a problem(in math) to let him go out of class early, he handed his solved problem before any other student in the class.

  • @michaelmontgomery5141
    @michaelmontgomery5141 3 года назад +4

    Like your channel. As a manager and scientist, the most important idea is to maintain communication with direct reports. Staying out of blame and asking questions help staff focus on the important things like values and group culture.these studies are important yet they isolate behaviors without context to the whole. Thus the point is well made. And what is also important includes perception of and individual performance to the group. And if done correctly, group influence actually means more than just my impact.

  • @עמריטפלא
    @עמריטפלא 11 лет назад +4

    I'm Israelian and I can assure you that bad feedback Isn't part of our culture.
    You welcome.

  • @ii795
    @ii795 3 года назад +5

    It's interesting, I actually read Kahneman's book, but I still find your way of presenting this idea very fresh. You are a really good educator.

  • @the-thane
    @the-thane 11 лет назад +14

    What if it has to do with how much respect people have for the instructor? I know that for teachers I dislike and don't respect, negative feedback makes me contentious and positive feedback makes me annoyed, but with teachers I do like, negative feedback makes me want to try harder and positive feedback makes me lax. In the case of the fighter pilots, the pilots are trained to respect and not fail the instructors, so maybe they'll try a lot better to not disappoint and to not be reprimanded. Meanwhile, many students loathe their teachers, so they wouldn't care. However, for the sports team, it could be a case where the players don't want to let their coach down, and those who are castigated actually feel letdown and they perform better because they are depressed a bit. Just a thought.

  • @enriqueflimberger
    @enriqueflimberger Год назад +1

    When watching your videos I usually like them, then start to watch in full screen. Then for 3 or 4 times during the video I will go out of full screen wondering if I already liked the video. I wish I could like it multiple times. Excelent video.

  • @30110CKs
    @30110CKs 3 года назад +7

    Having spent decades training people in both technical fields and martial arts, my experience is that it depends on the type of person you are. Most people are encouraged by positive feedback, some are encouraged even more by negative feedback while others are discouraged.

    • @pegasisilver6249
      @pegasisilver6249 3 года назад +2

      This is what the topic should be about.
      Personally i hate to get positive feedback. it makes me uncomfortable. Constructive negative feedback is my bag.

    • @mavvos
      @mavvos 3 года назад +2

      Sure it makes sense to be subjective with each interaction but we need to have a method that statistically works better with a greater population, in this case positive feedback, so even in this example you have a higher chance of hitting the right method from the start

  • @AmazingHaloForges
    @AmazingHaloForges 11 лет назад +26

    This video was fascinating, but I feel like it wasn't really about punishment vs. reward so much as positive feedback vs. negative feedback. I guess I'm just curious to see how (for example) kids might react to discipline or candy.

    • @niqhtt
      @niqhtt 11 лет назад +1

      not trying to be a generic non-answer, but i truly believe they need both. Although some will respond more to another based on their personality. Overall they need love and acknowledgement, but they also need to know failing is ok and part of life and that in the end they aren't less because of it.

    • @AlexanderZapataIndividual
      @AlexanderZapataIndividual 11 лет назад

      If you seek to programm behaviour into people, I suggest you look into ridiculing [The Effects]. Straight off the bat this sounds evil but its effective and can be used for good.

    • @MrWorldWide581
      @MrWorldWide581 11 лет назад +3

      Make sure to check out Plethrons . They have some pretty good content!

    • @alejandrinos
      @alejandrinos 11 лет назад +3

      Itsover ninethousand That comparison is ridiculous. Punishment is meant to teach a lesson to the kid. You don't punish your girlfriend or your friends because it's not your job to teach them how to behave.
      It's a completely different relationship.

    • @itisdevonly
      @itisdevonly 11 лет назад +2

      alejandrinos
      Children deserve to be treated as people, too, though. When they misbehave it's not like they're doing it out of malice. It's that it takes time for them to learn. Punishing them distracts them from the lesson and teaches them to look at situations selfishly, as in "how will this affect me?" instead of its larger impact. Talking with kids is a better way to improve their behavior, and it promotes a better parent-child relationship as well, which is important if you want your kids to keep listening to you as they get older.

  • @localatticus4483
    @localatticus4483 9 лет назад +77

    For me, negative feedback can really demoralize me over time. For the first or second times, it can make me feel like I'm proving them wrong and I do better, but after too long I just shut down and say "I don't need to please this person" and end up not wanting to do anything they say.
    On the other hand, sometimes with positive feedback I know I'll have to up my game to impress again, so I'll try to do so. Of course eventually that becomes difficult and I level off again to reestablish myself before trying again.
    Both forms of feedback are beneficial for me in small amounts. Too much negative and I'm less likely to complete the task in the first place, too much positive and I know I can't always do better.

    • @mikeyo1234
      @mikeyo1234 5 лет назад +4

      Truly successful people don't give care about feedback. They will do their best no matter what. Hard to achieve that confidence though. Set your own goals and congratulate yourself. People who rely on other's opinions are screwed.

    • @bigben8129
      @bigben8129 5 лет назад +8

      @@mikeyo1234 That's too oversimplified buddy. It is dependent on your expertise what kind of feedback you prefer to a certain task, together with your confidence. So basically the felt confidence to successfully deal with something is the important thing. People low in expertise and confidence obv need positive feedback to reassure them they are doing fine. But people with very high expertise are different. They (usually) really happy when they get constructive negative feedback because it rarely happens when you are super good in something and this gives you a chance to even get better. So when expertise increases in people there comes a turning point where they actually prefer negative feedback.
      Still, surely the negative feedback should be phrased nicely like "I think you should try dadada "

    • @koralee8135
      @koralee8135 4 года назад

      I work well with negative feedback personally.

  • @sethreynolds4186
    @sethreynolds4186 3 года назад +8

    I’m no mathematician but I actually have “regression to the mean” tattooed on me 😂

  • @Commandodesigns
    @Commandodesigns 10 лет назад +17

    This is a great principal for simply statistical outcomes like the coin toss but doesn't work with human performance. We consciously and subconsciously perform better at physical tasks simply by repeating them in spite of whether we fail, succeed, or simply improve.

    • @DIVAD291
      @DIVAD291 6 лет назад +17

      thats kind of not true. if you throw balls in the air to try and juggle you will improve every time you do it right? well you will but you will improve slower and slower every time and at some point it will take tens of thousands of attempts to see any noticeable improvement to your average and when you reach that point random variance between each attempt will affect your next result thousands of times more than your improvement between the attempts.

    • @themichaelconnor42
      @themichaelconnor42 4 года назад +2

      @@DIVAD291 that's also not necessarily true. You're assuming there's no intent on behalf of the person to try to "learn" how to juggle, and they're just tossing balls in the air randomly. If they're trying to improve their performance, then they'll be consciously and subconsciously critiquing their own performance and figuring out what they can do better; after a certain point, they will have a strong enough grasp of the concept they are trying to learn to be able to predict what the next step would be, even if they haven't reached that point in their experience.

    • @crwa111
      @crwa111 3 года назад +11

      Regression to the mean is always a factor, because chance is always a factor. How large of a factor it is will change based on the skill/chance balance of the task, but regression to the mean is always present. And you have to remember that the mean you are regressing to changes as your skill improves. You might go from being a novice to an expert in a task, and that will be reflected in changes to the “mean” that your performance will always regress towards. A novice runner might have a mean mile time of 8 minutes, and an expert 5 minutes.

    • @yannickgullentops6857
      @yannickgullentops6857 3 года назад

      @@themichaelconnor42 Thats not true, you dont need to assume that they don't try to learn. Their is a point for any task that improving will take a long time for small improvements. (This is just a consequence of nothing being able to be improved indefinitly.)

  • @blackboxdisease
    @blackboxdisease 11 лет назад +5

    I believe that the only thing learned through reward is how to get a reward.
    I suppose it's all about what we are learning as well. When we learn not to do something, it is usually through negative re-enforcement and the opposite through positive re-enforcement. However there are so many variables that it becomes hazy to know when negative or positive re-enforcement should be used for improvement.
    It is also expected that by using both, eventually an equilibrium is created and each persons equilibrium can be different and can change from time to time, that equilibrium being the point where one is content with oneself at the moment where one doesn't feel the need or expect a reward for learning something, and is also aware of possible consequences which is reward in itself, because one then avoids that which may cause harm, be it mental, physical, or psychological.
    I realise as well, that those who always seek reward tend to be self-centered, and greedy and often are not aware of or care for consequences resulting in their need for reward. These people I believe to have great difficulty with the negative aspect of learning and have emotional imbalances.
    When I became aware of this subject, it was hard not to notice it, see it in action and the results created, in my workplace and with the daily interaction of people. This also allowed me to know each persons state of equilibrium and the amount of balance or imbalance, and how it affects the person which in turn seems to effect their personality traits and reveals the level of aptitude they may have.

  • @DukeThatSpooks
    @DukeThatSpooks 8 лет назад +338

    take a shot everytime he says feedback

  • @elijahullmann6231
    @elijahullmann6231 Год назад +1

    This is one of my favorite videos of all time!

  • @JosephsStuff
    @JosephsStuff 3 года назад +8

    Here's a thought from the webcomic prequel:
    You find a four-leaf clover, this increases your chance of finding another four leaf clover, which increases the chances of you finding another, and another, and eventually you build up so much luck that the only clovers you can find are four leaf clovers.

  • @beegum1
    @beegum1 11 лет назад +11

    I believe in consistent honest feedback. Consistency is actually the key to whole thing. Also, the notion of one disciplinary technique is the best fit for all people is flawed at the most basic level.

    • @veritasium
      @veritasium  11 лет назад +2

      Couple points - I agree consistency is important. But when you say "the notion of one disciplinary technique is the best fit for all people is flawed at the most basic level" it sounds like a hypothesis. Studies across species have shown that to help individuals, say, find their way through a maze, rewards work better than punishments. There may be exceptions, but I don't think they break the rule.

    • @beegum1
      @beegum1 11 лет назад

      Veritasium As a matter of fact, I recently heard tell of an article wherein a study cherry picked well behaved children to see how they were disciplines. 60% had parents who spanked them, this discipline normally dies out between 6 and 8 years of age. One must be careful that their understanding of disciplinary studies isn't colored by media editing based on flawed assumptions regarding normal human development. If, for instance, you're under the impression that children 'learn' to misbehave, rather than are born with their own personality, you would appear to be making a mistake, although one inexplicably common amongst many intellectual elites, but, not shared by the actual clinicians who do the actual work. 

  • @zacharycarolus7385
    @zacharycarolus7385 9 лет назад +16

    This video literally just made my day. I've been struggling with depression a lot lately and it just makes me feel like things will always average out to be better. Like I'm getting all the bad days out of the way now, so I can live a happier life later, ya know?

    • @giampaolomannucci8281
      @giampaolomannucci8281 5 лет назад +2

      So, 4 years later, did it work that way or what?

    • @windowsxseven
      @windowsxseven 4 года назад

      @@giampaolomannucci8281 unfortunately Zachary has passed away a few months ago

    • @giampaolomannucci8281
      @giampaolomannucci8281 4 года назад

      @@windowsxseven How do you know?
      Seems like he updated one of his playlists a couple days ago

  • @MattFitzgerald
    @MattFitzgerald 4 года назад +4

    This book completely changed my outlook on life. It’s pretty crazy.

  • @anthonyred3991
    @anthonyred3991 11 лет назад +8

    just because many of the data we collect fits a normal distribution, doesn't mean that the normal distribution is some kind of natural law that governs performances of humans. complex actions cannot be easily quantified in that respect- it's very hard to evaluate objectively which performances are good and which are bad. also: it doesn't violate any physical law, if a novelist is getting "better" with each book, or an athlete with each competition et cetera.

    • @KageRyuu6
      @KageRyuu6 11 лет назад +2

      First thing, much, not many. Second, statistics in general are about as objective as it gets. Lastly, using artists, as that is what authors are artists of the written word, in an analogy about statistics is about as subjective as it gets given one's enjoyment of their craft is dependent entirely upon each individual, however the performance of an athlete can be quantified given the rules of the game they play, so comparing them in the same analogy is a fallacy.

    • @anthonyred3991
      @anthonyred3991 11 лет назад +1

      Thanks for correcting my grammar. Being not a native speaker of the english language, it's always helpful to get advice in that regard, so please also keep an eye out for potential mistakes in this comment. I have to add though, that "data" can be seen to be either plural or singular, so my version is also correct, albeit maybe a little unfamiliar to you.
      Now: 1) What did you mean to imply with the remark "Second, statistics in general are about as objective as it gets."? I don't see any connection to what I said, or any meaning behind these words in general. Did you mean the mathematical field of "statistics", or the results of satistical analysis of certain phenomena? I certainly didn't criticize statistics in general, just that the conclusions about reality, that were drawn in the video, were drawn from mathematical concepts, not empirical measurement. That is: Regression to the mean is not a universal law of nature- I could for example built 5 towers in my life, each one bigger than the next. This is an obvious fallacy in my eyes.
      2) The evaluation of the performance of a pupil in class is also massively subjective (I'm not talking about tests here). As is the evaluation of most complex human activities- this was my point. So whereas the performances of individual athletes in certain disciplines can be quantified with ease, in many other disciplines they cannot- for example: football, boxing, dancing, etc. Of course quantification of many single aspects of the performances is straightforward, but it's certainly not easy to attach a single number to each performance. Therefore talking of athletes and novelists in the same sentence - I didn't compare them explicitly, by the way, they were just part of the same enumeration - doesn't constitute a fallacy, and I could have also legitimately added scientists and painters and whatever happens to cross your mind.

    • @elliottmcollins
      @elliottmcollins 11 лет назад +1

      Regression to the mean works with any distribution, not just the Normal distribution.
      And if everyone is getting better over time, it means that the average itself is changing. The lesson still holds at any given time that the ones scoring much higher than average today will probably not score as high above average tomorrow.

    • @anthonyred3991
      @anthonyred3991 11 лет назад

      +Elliot Collins
      I'm not an expert in math, though I'm not sure if what you said holds true for power laws.
      Also: Your comment doesn't touch on the issue, my main argument, that it's hard to quantify most human actions (I'm not sure, for example, how you could rigorously quantify the performance of jet pilots for example...), therfore you mostly don't even get a distribution (as you have no data).
      We don't have "laws" of human behavior, that mathematically model our actions, so the whole thing about regression to the mean is more of a metaphor, than an actual law that could be violated. Therefore I don't take it too seriously.
      No more than that, did I intend to say! If you still disagree, it's okay

    • @elliottmcollins
      @elliottmcollins 11 лет назад +1

      ***** I agree that it's hard to quantify behavior, but that doesn't mean it's impossible or unreliable. We quantify performance on tests, amount of money made or spent, popularity of youtube videos, percentage of times a fighter jet's maneuver works, etc. etc.
      There aren't deterministic laws for social science, but when we measure outcomes of behavior, we see distinctive and useful patterns. And when we use those patterns to improve fighter performance or road safety, the principle of Regression to the Mean is important to remember.

  • @wikimon
    @wikimon 11 лет назад +7

    both positive and negative feedback work. it's not a matter of which is better, they BOTH should be used for maximum effect. punishing failure in addition to rewarding success provides a better gain than simply rewarding alone

    • @santiagoacosta777
      @santiagoacosta777 11 лет назад +4

      "punishing failure in addition to rewarding success provides a better gain than simply rewarding alone" got any data to back that up?

  • @fakjbf
    @fakjbf 11 лет назад +6

    The difference between Regression to the Mean and the Gambler's Fallacy is sample size. In GF, it's only one random event, so the probability isn't changed between the past and present. But in RM, it's a collection of random events. So while one event isn't dependent on it's past, it IS dependent on the average performance of the present, because the probability will be that it is in the middle, regardless of where it was before.

  • @jacobpaint
    @jacobpaint 3 года назад +8

    Thinking Fast and Slow is a great book and the Israeli pilot training is a memorable analogy. I wonder what the studies say about the type of positive feedback and the longer term affects. If you give students a participation award and praise them for average or even below average work then maybe they do find encouragement in that the first couple of times but they might soon adjust and realise that the praise is empty.

  • @danheidel
    @danheidel 11 лет назад +53

    One thing that could also influence the effectiveness of of positive/negative feedback is the personality of the people involved.
    For example, fighter pilots tend to be super alpha males with big chips on their shoulders. Positive reinforcement may not have much effect on them as they already view themselves in a very positive light. Getting them to change via smacking them down a peg or two may in fact be what works better.
    On the other hand, using boot camp techniques on a bunch of grandmas in a yoga class is probably not going to have a very good result.

    • @UniversalPotentate
      @UniversalPotentate 11 лет назад +13

      EXACTLY!!
      To extend on your idea, there are probably a variety of factors involved. Skill might also be an issue.
      People of low skill (students) might need positive reinforcement to continue to engage in the activity as their results don't show competence. People of high skill (fighter pilots) might need negative reinforcement because the only thing they could improve on is how much their "head is in the game."
      Ego, Skill, what they had for breakfast and the precession of Venus might all be factors which must be controlled to gain the best outcome.

    • @MeisterHaar
      @MeisterHaar 11 лет назад +1

      UniversalPotentate there is even more. you should take into account what the person is doing. in school you might get bored students to work in a subject with using positiv feedback, but you only become a pilot when you are really into that and you really want to do that so if you did something poorly you want to improve next time.

  • @jeremyhulbert3343
    @jeremyhulbert3343 4 года назад +80

    I hope the correct answer for the question "There are 6 continents on earth" was TRUE.
    The question doesn't ask if there are only or exactly 6 continents.

    • @marrenirre9994
      @marrenirre9994 4 года назад +20

      Well, it depends. There are 4-7 continents depending on what convention you swear by.

    • @sebastianescobar7182
      @sebastianescobar7182 4 года назад +5

      You think like a mathematician

    • @jeremyquentin42
      @jeremyquentin42 4 года назад +9

      Is the statement "There are 0 continents on earth" true then?

    • @jeremyhulbert3343
      @jeremyhulbert3343 4 года назад +20

      @@jeremyquentin42 no. 0 is definitive and means there can not be any more. If a thing has 7 pieces, it also has 6,5,4,3,2, and 1 pieces (and also fractions of those pieces, but that's going down the rabbit hole and there is a point where the math gets really weird), but nothing can have zero and non-zero pieces.
      This is why questions that are designed to test intelligence need to be very, very specific, or else you punish the test taker for thinking critically, something that an intelligence test shouldn't be doing. There ARE 6 continents on Earth, just like there are 6 hours in a day.

    • @jeremyquentin42
      @jeremyquentin42 4 года назад +2

      @@jeremyhulbert3343
      We can prove otherwise by recursion though.
      If A has n B's, then it has (n-1) B's.
      So technically, Earth also has -1000 continents.

  • @dannyduchamp
    @dannyduchamp 11 лет назад +16

    Brilliant video. I felt like just liking wasn't enough so I'm commenting that I like it as well.

  • @online6348
    @online6348 2 года назад +3

    I feel as though we as humans love to have shortcuts and clear answers that are either black or white, but in real life, finding a balance in the middle is key in almost everything. I feel like the positive/negative feedback debate shouldn’t be about which one is better or which one helps more. I think it should be about which one you should choose in each different situation that requires feedback. For example, if you have two pilots training for the same exercise and one is doing great while the other isn’t, you shouldn’t use exclusively positive feedback or vice versa. You should adjust your method of giving feedback based on the performance of the person. Because even though in this exemple, both people are doing the same exercice, they do not have the same needs in their understanding of the exercice for them to be better at it. I feel like for example, the one who’s doing good would benefit more from (not negative but) constructive criticism, so that the person can still find ground to evolve from and not get stuck in a lazy place because they were great from the start. Giving exclusively positive feedback to someone who’s doing good can easily make them fall in a confort zone because the mind stops working to find ways to surpass itself (and with time it can regress) and same goes for the person who’s struggling and how negative feedback can affect their ability to trust themselves and concentrate on doing better. Sometimes when you are too stuck in a negative cloud, you can’t see anything positive anymore and you can get lost in a desperate state where you think you are inherently bad at something because of that initial experience and response that you had. Finally, i think the danger lays in thinking that there is ONE better way, its either positive or negative but no, we should always adjust. (I havent watched the video yet so I might change my mind after this if I discover something i didn’t think about :3 )

  • @hiwayM9
    @hiwayM9 11 лет назад +11

    Wonderful video, wonderful.
    As a parent of an autistic child, I struggled with this scenario and could have used this knowledge decades ago when she was young.
    Being a communications disease with many a spectrum under it's umbrella, autism tests the parent's ability to dole out any lessons in cause and effect to the more severe of it's victims. I went from both ends of the range on positive and negative reinforcement over the years attempting to teach my daughter some sort of social cohesiveness- at no point, or at any time in all those years (she is now grown and struggling as an adult) did I ever feel as if either option offered any progress.
    I came to the conclusion that ultimately, negative reinforcement is far more draining, exhaustive, and generally debilitating to all parties involved, and especially to those souls who live and are part of the fringe and outer circles of that relationship. Negativity breeds a dark environment where at the very least, positivity shines a little light on an otherwise cumbersome day.

    • @veritasium
      @veritasium  11 лет назад +7

      I'm glad this video was relevant to your life. As I thought more about the statistical phenomena we are exposed to everyday, I was startled to realize all the things we mistakenly interpret as causal, which actually aren't. And I wholeheartedly agree that negative feedback is draining so it's always important to comment on the positives.

    • @hiwayM9
      @hiwayM9 11 лет назад

      Sai
      While I will grant you I walk the line in my post regarding equating punishment with negative reinforcement- it is out of a desire to communicate succinctly with a broader audience who may or may not consider the nuances between the 2. I assure you though I am still on point as to contemplate, and continually devise new reinforcements, or to make adjustments is "cumbersome" which makes for a very negative environment when you also consider the fact that my daughter, and many other people under the autism umbrella, do not respond to any reinforcement or punishments- there seemed to be no way of motivating, or focusing my daughter to maintain any sort of consistent socially acceptable behavior that would allow her a productive participation in society.
      I respect your desire to clarify- and I agree that there is little of that in these modern times- but at what point does over clarifying become no different than over simplification?
      Are you positively reinforcing my post, or are you punishing me for not being as definitive as you feel one should be? Who set the standards in the goal of the post, and whose criteria is used to judge it's worth to the world?
      Me thinks the masses make this determination- the readers do- but still- is that a positive reinforcement that I am right? If no one commented, or "+1" my post- does that make it irrelevant?
      Please do not answer those questions as they are only to help point out how finding the line between reinforcement and punishment can be a chore- seeing as you are "in class" ...I on the other hand, speak from experience.

    • @hiwayM9
      @hiwayM9 11 лет назад

      Sai
      Unfortunately- my lack of financial resources did not allow me to explore as many options, or even the select few as thoroughly as they may deserved- basic survival was the norm for us. So I cannot safely insinuate I was successful or imply I found any solid evidence of any specific method.
      She currently struggles tremendously- and with the country having become less tolerant of social programs in general, and with austerity mechanisms implemented, her life is not remotely a good experience.
      Now- if I could speculate on what I believe are factors to a successful approach in these matters (and at the risk of being labeled a utopic son of a bitch) I would say that most important would be community- meaning that the old adage, "It takes a village to raise a child" will always be true in the human creature- we need the social or tribal resources and no person is truly an island. Within that community there needs to be a consensus on cause and effect- regardless of specific special needs- there can be no shades of effect based on some arbitrary criteria. By the same token- expectations should match the rules- parents should carefully pick and choose their battles. If a parent is going to hand out an effect at every instance of what they see as misbehavior, well, I hope they can give up sleep as well as sanity.
      I could go into an entire monologue on bio-ethical viewpoints- but then I would absolutely cause readers to cringe, and not because I support them, but because those opinions do exist, and lend themselves to current animosity to the poverty and downtrodden, I leave well enough alone.

  • @ArtemSmaznov
    @ArtemSmaznov 11 лет назад +6

    It would have been so much better if everyone understood this. I've been thinking about this for a while and tried to explain it my acquaintances, but you can't change that in a day. Thank you for making the first steps to bringing that understanding to the majorities.
    A lot of people think that a 50% change of getting head or tails means that if you flip a coin 100 times it would result in 50 heads and 50 tails, but in practice that is not exactly true. There is even a small change that all of 100 flips it will result in only one of conditions.
    As they say - there is a big lie, a small lie and statistics. And true and at the same tame false this statement is.

  • @miinyoo
    @miinyoo 11 лет назад +4

    Negative feedback encourages strength and fortitude. Positive feedback encourages compassion and acceptance.
    Both are necessary in education. The externalities are totally irrelevant in aggregate preferably in a controlled study for which I'm sure there is ample referential evidence.
    But where do you draw the line?
    It depends on both the pupil and the challenge at hand, directed or not.
    It is up to the mentor to be the fountain of wisdom, not the pupil. That has quite a few variables of personality associated with it, but over time and many observations it is largely consistent through many studies. Interdependence is not an alien result.
    Self education is very tricky, however, in this respect because they must rely on their material to be the mentor in both respects. They must be able to scold themselves and reward.
    It can happen but it is a very wary and uncertain road since there is hardly measurable a developing of a bonding and trust throughout the process other than in the knowledge itself and the reaction from the outside world.
    I'm curious of your opinion on this, Mr. Muller. I am sure some of your readers can provide their insight too since they have myriad scenarios to offer to the conversation.

  • @aymanbenbaha
    @aymanbenbaha Год назад

    Veritasium your videos are ridiculously good to watch. It’s crazy to think this was published 9 years ago, when life was simple.

  • @jeffborders5526
    @jeffborders5526 4 года назад +517

    "three kinds of lies. Lies. Damned lies. And statistics." -Mark Twain.

    • @disruptivestudent9415
      @disruptivestudent9415 4 года назад +98

      @@ENXJ oh wow, he sounds cliche, how terrible. At least he doesn’t sound like an asshole.

    • @dinglesworld
      @dinglesworld 4 года назад +4

      @@ENXJ Oh wow, how kind of you to be an asshat to someone who at least wanted to share an idea, douche.

    • @u1zha
      @u1zha 4 года назад +6

      @@dinglesworld three kinds of ideas. Constructive/helpful ideas, neutral ideas, and destructive/dumb ideas.

    • @TrickShotKoopa
      @TrickShotKoopa 4 года назад +8

      @@ENXJ Lol "It's fun to be mean"? Ok troll

    • @HIK_48
      @HIK_48 3 года назад +9

      Last time I checked, Mark was no mathematician. Statistics are pure. Raw. And one of few things we can truly trust.
      People with an agenda can use then to serve that agenda (good or evil).

  • @lokynokey4822
    @lokynokey4822 11 лет назад +6

    That's it, schools should stop punishing for bad performance but only give awards for good performance. If you keep punishing people then they will do anything not to get punished but they won't care about performing more than just the minimum because the not getting punished is the focus. If you add reward together with punishment then there will be something to strive for but not getting punished is still the main focus which interrupts with the idea of striving for the reward . If you have only rewards then people don't have to worry about being punished and because someone get's more rewards than others competition emerges. The best thing is that no punishment means freedom to choose how to compete and which rewards should the person be going for.

  • @URAZKIVANER
    @URAZKIVANER 4 года назад +16

    As a teacher and an obsessed phycology geek I have to tell you this ; The thing is , you're ignoring the fact that people have the ability to learn from their mistakes. When the motivating positive feedback is given with the shown mistakes and teaching them how to do it better , people do better every time . None of them do worse regardless of where they were in the test statistically . So learning curve is dependent on the quality and type of the feedback regardless of the nature of the feedback positive or negative ... If you give negative feedback all the time together with the constructive criticism (showing how it could be better) , it also helps for a lot of people. At the end some people tend to get too sensitive about negative criticism and a little fragile , so they might get demotivated and do worse with by giving only negative feedback. But it never is bad for anyone if you give positive feedback together with their corrected mistakes. BTW flying a jet is more about focus than having a high level of testosterone . So those examples are irrelevant . If the pilots are showed their own mistakes all the time of course they would do better next time as skillful as they are . How would they even know what mistakes they have done unless they are shown ...

    • @specialandroid1603
      @specialandroid1603 2 года назад

      Human motivation is linked to individual needs, which as you suggest may be varied. Positive or negative feedback may motivate if that feedback meets one or more needs. That might include the need for recognition or reward.

  • @dennisdrayna9383
    @dennisdrayna9383 Год назад

    As a professional scientist, I'm often amazed at how often people, even those with some statistical knowledge, make these mistakes. Today, leading scientific journals have a bias toward publishing highly statistically significant findings, even when the strength of the findings could be substantially due to chance. I think human factors (such as wanting to be the first to report a big important discovery) can cloud journal editors critical thinking. Studies that fail to replicate (a large number when independently tested, especially in psychology, it seems) are the result, leading to public mistrust of science. It's great to have such a clear and easily understandable explanation. Thanks.

  • @VictorCaldo
    @VictorCaldo 5 лет назад +4

    Coming back to clarify some concepts, still an excellent explanation full of relatable examples. Thanks!

  • @ChristianSchonbergerMusic
    @ChristianSchonbergerMusic 11 лет назад +6

    IMHO there are two kinds of feedbacks. Negative: 1) you failed this time. 2) you are a failure. Positive: 2) you did well this time. 2) You are a winner. It is very important if the feedback is about a particular performance or about the person in general. If it is about the person in general, negative will eventually lead to trauma and positive eventually to arrogance. If it is about a particular performance it still depends on the "undertone": negative can mean "you can/should do better next time" and positive can mean "keep it up" or "you just were lucky". I'm afraid that whole feedback thing is way, way more complex. Just my humble opinion.

    • @VeNoM0619
      @VeNoM0619 11 лет назад

      Agreed, it's annoying whenever I hear any scientist say "random". NOTHING is random, it just merely appears to be random because of lack of understanding. (hint hint quantum physics).
      He shouldn't have said "random chance".

    • @likewhatijustsaid
      @likewhatijustsaid 11 лет назад +2

      VeNoM0619 The thing is, if something appears to be random, then we may as well treat it as being random. In most contexts, the word 'random' really means unpredictable. I have no idea what questions are going to be in some hypothetical pop-quiz on Monday, but whoever writes them does. To me, the questions are random, because I have no way of predicting it, but it's not truly random.
      I have no idea if that made any sense.

    • @ogbizi
      @ogbizi 11 лет назад

      likewhatijustsaid It did, and I guess this is the argument on both sides of quantum physics (it's random because we can't predict the outcome just its probability and it's not random because it can be predicted but we just don't how to) I personally believe in the latter.

  • @Alexs321432
    @Alexs321432 11 лет назад +6

    Explained perfectly
    However, when i get a bad grade usually i lose motivation whereas if i get an A or 100% i will be more motivated to study harder.

    • @JakRizen2
      @JakRizen2 11 лет назад +1

      That's not the same thing as what's being talked about though. When you consider the true or false test is about questions students wouldn't know about, their luck is just that, luck, and that changes from day to day. If anything, this only proves that luck and knowledge, like the knowledge you gain from studying is are not something that go hand in hand. You can get lucky and guess a few answers right here and there, but if you know more than you will get a higher score. The positive or negative reinforcement being talked about here is also something that you get from people as opposed to self-accomplishment or something you did by yourself, so I imagine how it affects what you do is also different.

    • @0RedTree0
      @0RedTree0 11 лет назад +6

      Really? When I get a bad grade, I'll realize I need to step up my game, whereas a good grade tells me I know my stuff and can slack.

  • @scharftalicous
    @scharftalicous 3 года назад

    Wow! you've been at this for this (and more) longer!? no wonder you got viral, your content is clean.

  • @sirien.neiris
    @sirien.neiris 6 лет назад +6

    Well - the alternative hypothesis is simple: if you want something requiring motivation, positive feedback is better. If you already do have motivation, than negative feedback is better.
    The argument is simple: If negative feedback causes people to stop trying, it's worst, because people simply stop trying. But once people are motivated to try to improve nevertheless, than negative feedback points out flaws which are getting them down or which can cause them to go down and their next performance will be stronger.
    It could be tested fairly easily.
    But the point about regression to mean is cool :D

  • @TransparentLabyrinth
    @TransparentLabyrinth 10 лет назад +15

    Something was bugging me about the logic of this video and it just hit me what it is. (Bear with me - this is a monster of a "comment.")
    Assuming that you're right with your standardized test example, it makes sense that if - for instance - you get 100/100 on a test, and then you retake it, chances are (speaking in terms of probability) you're going to get less than 100/100 the next time.
    This works for quantifiable ceilings (and floors - such as 0/100) because the inherent belief is that you can do no better than 100/100 and no worse than 0/100. But if we delve into more subjective examples, where the ceilings and floors are highly arbitrary and ill-defined (such as acting) the logic of it becomes increasingly psychological.
    Matthew McConaughey, for example, won an Oscar this year. Imagine if he were to say "that was the peak of my performing ability" (the acting equivalent of a perfect score - 100/100). Using the logic from before, that would mean that he's likely to do a somewhat worse job in his next big performance.
    However, the real McConaughey said that his hero is himself in 10 years. What this means is that there's an older, all-around-better version of himself that he believes he can always reach. In other words, he doesn't believe that there is a ceiling for his abilities. So the "ceiling" logic of his next performance being worst than his last may not actually apply because he doesn't believe it was his best possible performance.
    I think this psychological distinction is important to note because standardized testing internalizes this idea that you have a floor and ceiling to your abilities, and you can't stretch above or below those areas, which is incredibly limiting to believe! And if you apply the logic of your video here to a ceiling that you believe you have, then it makes sense why some people fail before they even get started: They don't believe that they can grow beyond a certain point.
    It also adds some weight to the motivational tough-coach routine, like the techniques used in the movie "Miracle." The coach provided some harsh feedback and some kind feedback, but that ultimately wasn't the point. The point was that he wanted them to believe that they could get better. And better. And better. And he insisted that he knew they had more ability in them than what they were offering.
    In short, he broke their limiting, psychological ceiling.

    • @idong1224
      @idong1224 10 лет назад +2

      wow, you just blew my mind. Thanks.

    • @bryanmitchell6075
      @bryanmitchell6075 10 лет назад

      In line with your thinking, I feel that much of my success has come from not setting limits on my own capabilities. I do not always have the ability to do something, but I believe I have the capability to acquire that ability if I desire to. "That sounds hard" and "I could never do that" are not thoughts I entertain.
      I think I've traced this thought process back to a single moment of realization. When I was in high school (went to a computer science school), a friend of mine said to me, "You know, as programmers, we're just not creative people." I didn't disagree, but on the inside I rejected that idea completely. Later that year I went and got an internship as a graphic designer. I learned how to use illustrator and photoshop. I learned how to be "creative." I majored in Computer Science and Film. I can program, draw, animate, write, film. Every hobby, skill or talent I've acquired crosses over and lends itself to every other area. The end result is that I am capable of developing games entirely on my own. Better still, when working in teams I have an understanding of the work that each element of a game requires and I understand how to fit everything together cohesively on a project because I've done those jobs. The idea that a programmer and artist cannot do both well because it requires two different types of minds is something I reject.
      I truly believe this comes down to personal philosophy. All it takes is refusing to set those limits for yourself. Anytime I've needed to do something, I've opted to learn how to do it. On the other side of the coin, I think there's a lot of positive feelings to take away from this video. I was not familiar with regression to the mean before watching this video. I am happy that I did. As a very serious 10-pin bowler, I have the occasional 250+ game. When I bowl in the 170s after that I feel like I might be getting worse. That I'm not improving. I think having a conscious awareness of regression of the mean may eliminate those feelings. I'll have bad games and I'll have good games, but you can't measure the highs and lows relative to each other the way that I've been doing. So I thank them for this video, and I also thank you for your thoughtful comment.

    • @TransparentLabyrinth
      @TransparentLabyrinth 10 лет назад

      Idong Itauma
      Happy to. Blew my mind too when it occurred to me.

    • @TransparentLabyrinth
      @TransparentLabyrinth 10 лет назад

      Bryan Mitchell
      Thanks for sharing your experience. I agree with you that not setting limits greatly changes what you can and can't learn. I think people who have disabilities and learn to work around them are a great example; they could opt for saying they're crippled and avoid doing most things, but instead they often push past the hardships and figure out ways to complete the tasks they want to get done.

    • @opus5770
      @opus5770 10 лет назад

      Bryan Mitchell Thanks for sharing -- I'm really impressed with what you've accomplished! Your comment on bowling scores reminded me of what my music teacher told me about performing. He basically said that you have good performances (like a 250+ bowling score) and bad ones (in the 170s), but whatever happens, every guitarist has a "bracket." Brackets have both a range and a central tendency. For example, if you rated someone's performance on a scale from 1-100, the very best guitarists will almost always hit 95-100; small range (consistent) at the top of what is possible. Lesser-skilled performers might range from 70-90; larger range (less consistent, having more to do with luck) at a lower over all level of skill. And even good students shouldn't be surprised to range from 40-80, until they learn to hone their craft.

  • @BasenjiAdventures
    @BasenjiAdventures 3 года назад +3

    That regression needs an attitude adjustment. It’s so mean.

  • @NSAhitLIST
    @NSAhitLIST 2 года назад +1

    I have experienced this a lot with my video games, if someone praises me i feel like i can do anything and it's now expected of me, but when i do wrong and someone calls me out i now feel the need to protect my pride by proving them wrong and doing what they thought i couldn't.

  • @0salum0
    @0salum0 2 года назад +9

    "How we're fooled by statistics"? show me some stats on how this is

  • @aachoocrony5754
    @aachoocrony5754 5 лет назад +69

    ---»Thinking Fast & Slow by Kahneman

    • @kebakue
      @kebakue 5 лет назад +5

      exactly.. not cool using a video without mentioning "inspiration"..

    • @aachoocrony5754
      @aachoocrony5754 5 лет назад +6

      @@kebakue True, he's using the examples from the book.

    • @jn278
      @jn278 5 лет назад +7

      @@kebakue i agree with you here. Yeah "inspired", sure... he practically paraphrased the whole idea and just reformat the content into a video format and made it seem like it was his researching and examples (same as with the "Science of Thinking" video, which was a gross oversimplification of the idea of the book). Might be an unpopular opinion here, but I think taking content from a book and re-explaining it in a video format without much further researching or even offering a personal take on the matter is far from the quality I'd expect from such a big channel. And like @Aachoo Crony said, he's even using examples from the book! The laziness?!

    • @vinckr5553
      @vinckr5553 4 года назад +17

      @@kebakue did you watch the video to the end? he gives credit to him

    • @timmathers5243
      @timmathers5243 4 года назад +2

      @@vinckr5553 If he is using the same ideas and phrasing then that is a quote and according to APA rules one gives immediate credit to the author et.al. Replacing a rule with a word i.e., "inspired" is plagiarism.

  • @Xoliapydon
    @Xoliapydon 11 лет назад +9

    I'm skeptical of the hypothesis you posed about the Israeli pilots. Standards in fighter pilots are very high, and while it's expected for pilots to improve, it's not expected for pilots to get worse (although randomness and other factors allow for this). Even if the regression to the mean can distort the numbers, if you quantify a pilots performance, and expect the average pilot to score a 90 out of 100, then a pilot who is averaging a 50 will expect his score to change significantly with more experience, whereas a pilot who averages a 95 still has a margin to work with. I'm fairly certain that the Israeli Air Force is aware of how statistics work, and how psychology works for that matter.

    • @stefanfrunza9792
      @stefanfrunza9792 11 лет назад +1

      I agree. Psychology does govern you and it plays an important role in your mind.

    • @Psylent
      @Psylent 11 лет назад +2

      You can't say the Israeli AF knows statistics. You have to say "that handful of dudes instructing the new pilots". And they aren't doing statistics, they are just doing their jobs and over the long term they "feel" that negative reinforcement works so that is what they tell everyone works. And who are we to question the experienced teachers? However, I agree. I am a little skeptical as well.

    • @stefanfrunza9792
      @stefanfrunza9792 11 лет назад

      Me too

    • @Hesse3
      @Hesse3 11 лет назад +1

      The 50% thing was a little confusing.
      The thing is: no matter how good you are at your job, there are your top days and your worst days.
      If you generally do something very well, and we take the worst day of your month, by definition, the day after that you do better.
      If you take the best day of your month, by definition, the next day you do worse.
      And the worse you are compared with your normal performance, the more likely that the next day will be better, closer to your normal level of performance.
      The better you are compared with your normal performance, the more likely that your next day will be closer to your normal performance.
      So if there are any better or worse days than your average performance, you will find the pattern described in the video. If there are none, the trainer will probably not provide feedback.
      Hope this helps.

    • @ShinDMitsuki
      @ShinDMitsuki 10 лет назад +1

      If the pilot is expected to score a 90 then the mean is 90, not 50. Deviations may be a 85 or a 95, it's not really expected to drop all the way down to 50.

  • @Kalahee
    @Kalahee 2 года назад +1

    Something people has to always remember, you can't keep a steady 110%, but it is easy to exceed low expectations.

  • @MiTic0ChiVa
    @MiTic0ChiVa 11 лет назад +10

    the question is: do people get more afraid of consequences than excited about rewards?, or viceversa

    • @chipichipichapachapa733
      @chipichipichapachapa733 11 лет назад +1

      Yeah, and he didn't even try to answer the actual question. He's just pointing out that "oh, you know, luck also plays a role in these things", which is not big news. I'm sure we can find a psychological answer to the question, this video was just about statistics.
      But I still subscribe him cause he's hot.

    • @thomaskositzki9424
      @thomaskositzki9424 3 года назад

      Just look at the gaming industry and you get your answer, because they employ good psychologists. ^^
      Short answer: excitement wins. So hard that you get addicted.

  • @RayDrouillard
    @RayDrouillard 3 года назад +14

    My cousin and I used to play a lot of backgammon, which has elements of luck and skill. We were evenly matched, having pretty much taught each other the strategy that we used.
    We started keeping track of our scores, including the use of the doubling cube.
    The results swung rather widely, with one of us being well in the lead one week, and the other being well in the lead another day.
    But neither of us ever got a consistent lead.

  • @venaist
    @venaist 4 года назад +8

    If statical models are these deceptive then imagine the opinion we form on our individual experiences.

  • @kathybrocato5148
    @kathybrocato5148 7 месяцев назад

    IMO, I believe that some of the effects that you are assigning to chance are actually due to not considering how individuals are motivated. Here's how I would conduct the pilot experiment based on info in the video and assuming sufficient pilots were available to be part of the trial(s): 1) Establish objective criteria for success/competence if not available, and measure each pilot before the trial begins. 2) Administer personality tests to determine the extent to which pilots are motivated by external feedback--either positive or negative. 3) Develop the statistical plan including group comparisons before the trial begins. I would propose assigning pilots randomly to 6 groups (more or less motivated by external feedback) and then randomly assigned to positive, negative or neutral feedback (either the instructor delivers results without emotion or pilots are just given their results by computer with no positive or negative feedback). Conduct the trial, measure improvements, analyze and then determine if changes are needed for subsequent trials.

  • @joelcathey
    @joelcathey 11 лет назад +17

    Now do a video about how heart disease isn't caused by high cholesterol.

    • @aajjeee
      @aajjeee 11 лет назад

      you have more chances to anyway

    • @EmdrGreg
      @EmdrGreg 11 лет назад

      What do the properly controlled studies indicate?

    • @joelcathey
      @joelcathey 11 лет назад +6

      Greg Scott That just as many low-cholesterol patients, if not more, die from heart disease than those with high cholesterol. That plaque is caused by high blood sugar oxidizing cholesterol, allowing it to penetrate the weakened arterial wall in areas that have become inflamed.

    • @EmdrGreg
      @EmdrGreg 11 лет назад +8

      If you're saying that we are paying too much attention to cholesterol and not enough to other important things, then if the evidence supports that I'm with you 100%. It seems reasonable that there are several factors that interact. Ignoring that possibility could be deadly.

    • @trolololoolable
      @trolololoolable 11 лет назад +2

      Joel Cathey wow thats actually pretty interesting. I would love to see a vid about that

  • @57thorns
    @57thorns 4 года назад +16

    The main problem is that they did not pick groups that performed equally well.
    You pick a quarter of the them (from the middle) and highlight their good and bad parts, and _then_ see what happens.
    Since skill is a large part in how well you perform, if you only praise those that perform the best, and berate those that perform poorly, you will exaggerate the differences, teching the lesser good players they are helpless, useless etc, and raising the better players ego to a point where they are still better, but not as good as they could be.

  • @psyberpunk777
    @psyberpunk777 11 лет назад +4

    how about instead caring about other peoples feedback in a positive or negative outlook, you look at things in a realistic outlook. I get annoyed at people who say just be positive... I say, just be realistic. If you did poorly on something, admit your faults, take notice of them and try to improve. Also take note of what you did well, use it for inspiration. Who cares if someone says you did poorly or if you did well... just take note of what they say and improve no matter what. People telling me how i did on something doesn't effect my performance, practice does. Think for yourself and questions like these are irrelevant.

  • @forrowelt
    @forrowelt 2 года назад +1

    I disagree with comparing the fire pilot example with students answering random questions, and I believe that it's not a good fit. There are three issues I claim:
    1) Pilots already have absolved a considerable amount of training before they even are allowed to fly an airplane. Their mental representations are much more sophisticated compared to laymen. It might be more efficient to point out mistakes than to praise, because praise wouldn't mean they change their mental representations.
    2) The importance of the tasks is significantly different, and this makes a great difference: The task of fire pilots is important for their life (they are dead if they crash because of a mistake), as well as for lives of other creatures (if they don't achieve what their mission was, other people or animals or plants die because of the fire). This psychological significance of the task might make people more receptive for 'negative' feedback. Whereas if students receive negative feedback, they might think, “why am I even doing this?”
    3) My main concerns are 1 & 2, but it might also make a difference that flying an airplane is a physical task which can be assumed to have a different learning process involved. Their brain might be able to connect their mistakes more easily with the feedback compared to students sitting in a classroom and doing some random test.
    I don't have evidence for my claims, they would need to be tested, but I think these are valid alternative hypothesis. I guess the rugby example might be able to rule out 3) and maybe (depends on player's and pilot's level) 1). But I am pretty confident about 2), and would love to see this examined... One additional sidenote: the sort of feedback should make a big difference as well. Is it immediate feedback, or is it delayed? I assume that immediate feedback has a less psychological component because it can be traced back better to the event at hand. Delayed feedback instead might not have this strong connection to the event anymore and might therefore be interpreted more general (-> influence on motivation & confidence).
    Would be amazing to know what you (Derek) and people here think about it.

  • @ellock1998
    @ellock1998 11 лет назад +7

    I actually would give 2-3 things that were bad and 2-3 things that were good. This makes the person feel like I am not BS-ing them by only telling the good parts while also keeping high expectations by showing areas that need improvement... anyway, that is my 2 cents.

  • @thebf3pro1
    @thebf3pro1 11 лет назад +12

    So what if you have negative feedback to someone who did over all well on a test (assuming they didn't get 100% you could still tell them what they need to do better) and give positive feedback to someone who did relatively poorly on a test (again assuming they didn't get 0% you could still tell them what they did well)?

    • @GIAGreenFire
      @GIAGreenFire 11 лет назад +6

      The person you gave negative feedback to would then become emo and the one you gave positive feedback to would become a jerk.

    • @JaysonMcLeod
      @JaysonMcLeod 11 лет назад +1

      Negative feed back is you suck. Generally you give constructive critism such as your answers are goo but not well thought out and generally give a few positive feed back. Also positive feedback is only good if you explain why you gave it. Good job washes right over most kids. But good job your introduction was very well thought out helps the most

    • @NWRIBronco6
      @NWRIBronco6 11 лет назад +1

      The key is that the test was designed to ignore feedback by having students vote randomly. If we assume that students actually try what we find is that the mean is some value, m. If we have other tests (with different problems) which we KNOW for sure would yield the exact same mean for this class in the absence of feedback then we can test the effectiveness of feedback by seeing where the mean lies after giving positive or negative feedback to portions of the class.
      A way to accomplish this might be to have many classes each take the same tests in parallel. Those who consistently score close to one another can be 'compared'. Before the next test give one class feedback and leave the other class to its devices. If their means differ there is some indication that feedback affects performance. You'd probably want more data points before you made any claims, though.

    • @krackerkid5
      @krackerkid5 11 лет назад

      YouNoob93 video said that psychological studies show negative feedback works better. the whole point of the video was to explain how luck can alter our perception of whether our feedback actually did anything.

    • @kobeballer
      @kobeballer 11 лет назад

      YouNoob93 Except the person who received the positive feedback would theoretically improve their score by an amount larger than what you would expect due to regression towards the mean. Assuming random answering and all that.

  • @heatherbluelove
    @heatherbluelove 10 лет назад +21

    Not nice man.I had final exams and my mom was watching this with me and you know the rest.

    • @MEGAsporg12
      @MEGAsporg12 10 лет назад +51

      rule number 1 on internet: keep your mom away

    • @valhar2000
      @valhar2000 10 лет назад +2

      What did she do?

    • @AdamBrackney
      @AdamBrackney 10 лет назад +7

      I assume she found your porn stash on the hard drive or in your browser history.

    • @heatherbluelove
      @heatherbluelove 10 лет назад +3

      Adam Brackney NO it was a joke.She punished me. because she thought it was more effective.Why do you turn everything to sex?.

    • @Xplorer228
      @Xplorer228 10 лет назад +19

      But punishment being the best approach wasn't even veritasium's stance in the video...

  • @ChurchillGeoff
    @ChurchillGeoff 2 года назад +1

    one more possibility on the pilot example is the sample bias you have a sample of people who have self selected to for a high risk high adrenalincareer

  • @whispersilk
    @whispersilk 3 года назад +4

    I read about this like two weeks before seeing this video in Thinking Fast and Slow by Daniel Kahneman, good stuff.

  • @SanoopAI
    @SanoopAI 5 лет назад +4

    Negative feedback always work with tasks involving life or death like combat

  • @notjustin2167
    @notjustin2167 5 лет назад +10

    This is a fantastic video...I know I'm late to the part here, but keep up the good work!

  • @pedro-ue9iv
    @pedro-ue9iv 2 года назад

    JESUS I LOVE YOUR CHANNEL YOU ARE SO DAMN GOOD I GET IMPRESSED EVERY TIME OMG