StatsTest Blog
Experimental design, data analysis, and statistical tooling for modern teams. No hype, just the math.

Friedman Test
The Friedman Test is a test used to determine if 3 or more measurements from the same group are different from each other on a skewed variable of interest.

Kruskal-Wallis One-Way ANOVA
The Kruskal-Wallis One-Way ANOVA is a test used to determine if 3+ groups are different from each other on a skewed variable of interest.

Mann-Whitney U Test
The Mann-Whitney U Test compares two different groups on your variable of interest (dependent variable) when your variable of interest is skewed.

Single Sample Wilcoxon Signed-Rank Test
The Single Sample Wilcoxon Signed-Rank Test is a statistical test used to see if a single group is significantly different from a known population value.

Wilcoxon Signed-Rank Test
The Wilcoxon Signed-Rank Test is a test used to determine if 2 continuous measurements from a single group are significantly different from each other.