Where did the t(434) come from? Thank you for the great video! Also, I am confused about calculating the effect size...if you square the t and then divide it by the squared t, that would be 1..then adding in the two n groups and subtracting it by 2 would still make for a large number. Thank you! This is great!
Hi, I'm currently writing my bachelor thesis in sports and health science and I'm getting rather close to finishing. Basically, I've been comparing two groups and testing their speed acceleration and change of direction ability. I've done baseline tests and post-tests, and now i want to compare the two groups to find which training method had the greatest effect. Can you please help me!? Regards Marcus
+Marcus Hawkins In requesting assistance, are you asking what analysis you should use for your research? If you are simply comparing two groups, you may consider a t-test; however, I recommend you read the article entitled, "The Good, the Bad, and The Ugly of the t test" to determine if a t-test is a better choice than an alternative such as an ANOVA. If you have pre-tests you are using as control variables, you may consider looking into an ANCOVA. Of, course there are also other factors to consider such as assumption testing. If you are looking for consulting, check out: thedoctoraljourney.com/statistical-consulting/
thank you for this great video. Would you mind help me with this question regarding the Independent samples t-test which has driven me nuts recently? Let's say I want to compare the income (IC) between male and female; and the component "income" consists of various types of income (IC1, IC2, IC3). Is it possible to compare IC with cumulated means of IC1, IC2 and IC3 (using independent t-test)? The video only mentions how to compare means of each items. Thank you very much.
+The Doctoral Journey hi , i just wanna ask u my problem about my research . my title is comparison of dynamic and pnf stretching on speed and agility among football players . i use 25 participant to do dynamic stretching for 1 day n after the stretch they do speed and agility test , after 3 days , the same person do the pnf stretch n after that they do speed and agility test . so what analysis should i choose in the spss , pls help
HELLO, please i need help! when i enter or paste negative values to spss the values disappears while the positive ones don't. how can i fix this problem? please help
hi , i just wanna ask u my problem about my research . my title is comparison of dynamic and pnf stretching on speed and agility among football players . i use 25 participant to do dynamic stretching for 1 day n after the stretch they do speed and agility test , after 3 days , the same person do the pnf stretch n after that they do speed and agility test . so what analysis should i choose in the spss , pls help
The information was simple. Great job explaining t test! Thanks.
Where did the t(434) come from? Thank you for the great video! Also, I am confused about calculating the effect size...if you square the t and then divide it by the squared t, that would be 1..then adding in the two n groups and subtracting it by 2 would still make for a large number. Thank you! This is great!
you didn't mention how you found observed power was .37.
Great vid, plus example was useful.
Thank you for the video, it is very helpful, but can you have any idea of applying T-test to a five Likert analysis?
Hi, I'm currently writing my bachelor thesis in sports and health science and I'm getting rather close to finishing.
Basically, I've been comparing two groups and testing their speed acceleration and change of direction ability.
I've done baseline tests and post-tests, and now i want to compare the two groups to find which training method had the greatest effect.
Can you please help me!?
Regards
Marcus
+Marcus Hawkins In requesting assistance, are you asking what analysis you should use for your research? If you are simply comparing two groups, you may consider a t-test; however, I recommend you read the article entitled, "The Good, the Bad, and The Ugly of the t test" to determine if a t-test is a better choice than an alternative such as an ANOVA. If you have pre-tests you are using as control variables, you may consider looking into an ANCOVA. Of, course there are also other factors to consider such as assumption testing. If you are looking for consulting, check out: thedoctoraljourney.com/statistical-consulting/
thank you for this great video. Would you mind help me with this question regarding the Independent samples t-test which has driven me nuts recently?
Let's say I want to compare the income (IC) between male and female; and the component "income" consists of various types of income (IC1, IC2, IC3). Is it possible to compare IC with cumulated means of IC1, IC2 and IC3 (using independent t-test)? The video only mentions how to compare means of each items.
Thank you very much.
this help so much, thank you.
Where can I download the SPSS data file you are using in this video? Thanks
thank you
Nice tutorials
+Debrah Isaiah Thank you for the positive feedback.
Nice video but all effort to download proved futile. Could you please help me
+Debrah Isaiah The RUclips videos are available for streaming; however, they are not intended for download purposes.
+The Doctoral Journey hi , i just wanna ask u my problem about my research . my title is comparison of dynamic and pnf stretching on speed and agility among football players . i use 25 participant to do dynamic stretching for 1 day n after the stretch they do speed and agility test , after 3 days , the same person do the pnf stretch n after that they do speed and agility test . so what analysis should i choose in the spss , pls help
thank you very much for the video ! would you add some economic variables for this analysis? thank you!
HELLO, please i need help! when i enter or paste negative values to spss the values disappears while the positive ones don't. how can i fix this problem? please help
@ the Results section, on lines 9 and 10, how is "p" (p=11) determined AND how is the observed power determined?
Good stuff
thanks a lot! but what kind of test would somebody use if he had to compare two groups of 9 and 36?is it proper to use tis test?
Hi! Thank you for the video. In the result section you say that the t score is 1.62 with p=11. Why is p value 11? Should it be 5? Thanks
nininha219 In the column equal variance assumed row and Sig column, you will see that p = .105. Rounded to two decimal places this is .11.
hi , i just wanna ask u my problem about my research . my title is comparison of dynamic and pnf stretching on speed and agility among football players . i use 25 participant to do dynamic stretching for 1 day n after the stretch they do speed and agility test , after 3 days , the same person do the pnf stretch n after that they do speed and agility test . so what analysis should i choose in the spss , pls help
How to directly input data in SPSS?
where show the 0.06 of the effect size? i can't understand
you need to follow the formula she gave : t²/(t²+N1+N2-2), you replace by the values from the table and you get: 1.62²/(1.62²+184+252-2)=0.06