Is there any difference between the terms “paired t-test” and “pairwise t-test”?

What is paired t-test, and under which circumstances should I use paired t-test?
Is there any difference between paired t-test and pairwise t-test?

Answer

Roughly, paired t-test is a t-test in which each subject is compared with itself or, in other words, determines whether they differ from each other in a significant way under the assumptions that the paired differences are independent and identically normally distributed.

Pairwise t-test, on the other hand is a function in R which performs all possible pairwise comparisons. See this discussion for more information

Attribution
Source : Link , Question Author : user3269 , Answer Author : Boris Gorelik

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