Paired Samples T-Test (How to calculate and interpret)

This short tutorial is about the paired t-test. You will learn how to calculate the dependent t-test, what the assumptions are and how to interpret the result. With this hypothesis test you can examine whether there is a difference between two dependent samples.

Paired samples t-Test Calculator:

More information about the t-Test for paired samples:

Table of t-values:

#statistics

[beepboop]

This video is full of mistakes, useful but I have to keep fixing things
- 2:46 S.D = 5.84, when calculating standard error, 5.68 is used
- 4:00 (5 - 1 = 3)

[davidt.]

3:11: The s used in "Standard error of the mean" is different than the s calucalted in "standard deviation"??

[videoquotes]

4:02" : "The degrees of freedom in our case is 5-1=3?"

[arvindpillai]

Hii mam your videos are so good and informative just wanted to ask one doubt,
When we check for normality in paired t test the input to shapiro test will be the difference of paired sample?

[veranath]

Thanks for the video.
What should we do if the date are not normally distributed?

[nevos]

i think while inputting the data from your website, there are some faults in calculating the differences. It should be y-x (where x is before and y is the after). I tried doing the paired samples t test on this website, and it resulted in a negative t-value. even though the difference is positive.

[shunyihuang]

Should I consider this example as one sample t-test or two-sample t-test since each pair is the same person? Thanks

[yasinhasanov]

thank you for the video but my question is that where we got 0 while calculating t value ?

[caesaryumury]

WHy don't you do a pooled standard diviation?

[quynhpham]

Thank you, can you share the slides in form of pdf file?

[jsvsvsbsh]

Ma'am I have a question regarding this topic for my research. Hoping for a fast response...

[HanifHussain-prih]

Your standard deviation value used for stderr is wrong.