A friend of mine is writing a small research paper for her bachelor's degree, and we are not 100% sure what test to use. Basically, we have to see whether an anxiety training had effect on levels of depression, anxiety and fear.
Independent variabele: Followed anxiety training (yes or no, so nominal)
Dependent variabeles: Depression score, anxiety score and fear score (interval variables)
Our sample size is very small (n = 5)
We figured we'd use the non-paramtric Wilcoxon Rank Sum test, seeing as our sample size is so small. Are we on the right track?