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StatsTest Blog

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

Chi-Square Test of Independence
Goodness of FitDec 5New

Chi-Square Test of Independence

The Chi-Square Test of Independence is a test used to determine if the proportions of categories in two group variables differ from each other.

Fisher's Exact Test
Goodness of FitDec 5New

Fisher's Exact Test

Fisher's Exact Test is a statistical test used to determine if the proportions of categories in two group variables significantly differ from each other.

G-Test
Goodness of FitDec 5New

G-Test

The G-Test is a test used to determine if the proportions of categories in two group variables significantly differ from each other.

Two Proportion Z-Test
Goodness of FitDec 5New

Two Proportion Z-Test

The Two-Proportion Z-Test is a test used to determine if the proportions of categories in two group variables differ from each other.

One-Way ANCOVA
DifferenceNov 30New

One-Way ANCOVA

The One-Way ANCOVA is a test used to determine if 3+ groups are different from each other on your variable of interest in the presence of a covariate.

Factorial ANOVA
DifferenceNov 29New

Factorial ANOVA

The Factorial ANOVA is a test used to determine if two or more sets of groups are significantly different from each other on your variable of interest.

Kruskal-Wallis One-Way ANOVA
DifferenceNov 28New

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.

One-Way ANOVA
DifferenceNov 26New

One-Way ANOVA

The One-Way ANOVA is a statistical test used to determine if 3 or more groups are significantly different from each other on a variable of interest.

Mann-Whitney U Test
DifferenceNov 21New

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.

Independent Samples Z-Test
DifferenceNov 20New

Independent Samples Z-Test

An independent samples z-test is used to determine if 2 groups are significantly different from each other on your variable of interest.

Independent Samples T-Test
DifferenceNov 19New

Independent Samples T-Test

You should use an independent samples t-test to determine if 2 groups are significantly different from each other on your variable of interest.