Common Statistical Tests Goal Basic overview Statistical tests used R code Compare a continuous variable between 2 independent groups Two groups continuous Independent group t-test Wilcoxon-Mann-Whitney Testing two groups continuous in R Compare a continuous variable between 2 dependent groups (ex: pre/post studies) Two groups continuous Paired t-test Wilcoxon Rank Sum test Testing two groups continuous in R Compare a continuous variable between more than 2 independent groups Two groups continuous Analysis of variance (ANOVA) Kruskal-Wallis test Testing multiple groups with ANOVA in R Test for association between two categorical variables Testing associations Chi-square test Fisher’s Exact test McNemar’s test Cochran Armitage test for trend Testing for associations in R