Class 26: Biserial and Point Biserial Correlation || NET preparation || Dr Justine's Classroom

#UGC_NET #Psychology #Statistics #Biserial_correlation #Point_biserial_correlation
Contents
1. Concepts
2. Equation
3. Assumption
4. Application
5. Testing significance

[@terracotta3401]

1:52 is me in every psychometric class

[@TeacherEducationJustin]

In exactly 2.33 minutes, you made the conceptual difference. Super. Stay blessed.

[@deepthikrishnap]

Thank you Sir. Your teaching is amazing

[@aditidump]

sir u explain very well and ur very passionate abt ur subject it is very clearly seen

[@sahilparyani7414]

thank you so much! your videos are really helpful.

[@domillima]

Great job

[@skakoli6850]

Thank you so much for helping us. Please help me how to draw ROC curve.

[@dr.justinesclassroom7979]

I shall do after main contents.

[@RG-sl6ix]

Point biserial is a non parametric test, but then why it's assumption s normality. Can I use it n non normal data

[@dr.justinesclassroom7979]

point biserial is a parametric test

[@mgayatri8188]

Hello Sir , I just got confused at the end... scale construction uses biserial or point biserial ?

[@dr.justinesclassroom7979]

Based on the context. if the Dichotomy is based on the total score (dividing to two categories), it has to be biserial correlation.
Sorry for the confusion.

[@asthapoudel8321]

What if my data is not normally distributed? Can I still use it??

[@dr.justinesclassroom7979]

Yes. You may use it for analysis. You have to check the assumptions of each statistical analysis. If normality is an assumption, then go for non-parametric tests.

[@laxmidubey.906]

Well

[@dikshadugar5142]

Its really helpful

[@dr.justinesclassroom7979]

Glad to hear that

[@wanderlustwernweh5313]

I want to calculculate effect size for Mann-whitney test, is this suitable to it please? Thank you!

[@dr.justinesclassroom7979]

Z/root(n) is the meaure we generally use for it. I shall try to get some reference too. Sorry for the delay.

[@wanderlustwernweh5313]

@@dr.justinesclassroom7979 no prob bro... It's ok

[@yeahwhatever7655]

Well taught yes BUT are you writing on glass?? That means you're writing in mirror language in real time with any issue!
This is soo cool I've never seen this in educational videos or anywhere actually, but also kinda distracting cus i was so baffled that couldn't focus on the topic😅
Or you just flipped the foootage nv lol

[@dr.justinesclassroom7979]

Yes... I do flip the video :-)

[@tommystanley36]

R u a real doctor?

[@dr.justinesclassroom7979]

Why dear? Have I made any huge mistake?

[@littlefingerworld8519]

Plz slow

[@priyanshiavasthi2751]

Wear a money heist mask and you will be looking like you are plotting some type of heist .

[@dr.justinesclassroom7979]

I didn't understand.. :-)

[@priyanshiavasthi2751]

@@dr.justinesclassroom7979 now I forgot why I wrote this msg haha 😂😂

[@avnivarshney3190]

@@dr.justinesclassroom7979 I think it's referencing to the Netflix series named money heist