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1 vote
1 answer
371 views

Interpreting a significant correlation in a small sample

I found a correlation between two variables: Variable A is dichotomous, with values 1 and 2 (for yes/no) Variable B is continous (score, 0 - 50) They correlated with each other. However, my sample ...
mcfilu's user avatar
  • 113
1 vote
0 answers
28 views

Alternative test to paired t-test? [duplicate]

I need to compare data from paired groups, but my distributions are non-normal, and my sample size is small. Are there any tests I could apply? I've been looking into non-parametric alternatives like ...
N S's user avatar
  • 11
140 votes
8 answers
121k views

How to choose between t-test or non-parametric test e.g. Wilcoxon in small samples

Certain hypotheses can be tested using Student's t-test (maybe using Welch's correction for unequal variances in the two-sample case), or by a non-parametric test like the Wilcoxon paired signed rank ...
Silverfish's user avatar
  • 23.8k