# Algorithms statistical test Flashcards

Statistical tests for comparing **2 groups** with respect to **means: Independent groups, non-normal distrib.**

Statistical tests for comparing **2 groups** with respect to **means: Independent groups, normal distrib.**

Statistical tests for comparing **2 groups** with respect to **means: Paired groups**

Parametric comparison test:

Predictor variable: **Categorical (1 predictor)**

Outcome variable: **Quantitative (groups come from the same population)**

**Paired t-test**

Parametric comparison test:

Predictor variable: **Categorical (1 predictor)**

Outcome variable: **Quantitative (groups come from different populations)**

**Independent t-test**

Parametric comparison test:

Predictor variable: **Categorical (1 or more predictor)**

Outcome variable: **Quantitative (1 outcome)**

**ANOVA**

Parametric comparison test:

Predictor variable: **Categorical (1 or more predictor)**

Outcome variable: **Quantitative (2 or more outcomes)**

**MANOVA**

Nonparametric test:

Predictor variable: **quantitative**

Outcome variable: **quantitive**

Equivalent parametric (correlation)

**Spearman’s r**

Use in place of: **Pearson’s r**

Nonparametric test:

Predictor variable: **Categorical**

Outcome variable: **Categorical**

Equivalent parametric

**Chi-square test of independence**

Use in place of: **Pearson’s r**

Nonparametric test:

Predictor variable: **Categorical**

Outcome variable: **Quantitative**

Equivalent parametric

**Sign test**

Use in place of: **One sample t test**

Nonparametric test:

Predictor variable: **Categorical (3 or more groups)**

Outcome variable: **Quantitative**

Equivalent parametric

**Kruskal-Wallis H**

Use in place of: **ANOVA**

Nonparametric test:

Predictor variable: **Categorical (2 groups)**

Outcome variable: **Quantitative (groups come from different populations)**

Equivalent parametric

**Wilcoxon Rank-Sum test**

Use in place of: **Independent t-test**

Nonparametric test:

Predictor variable: **Categorical (3 or more groups)**

Outcome variable: **Quantitative (2 or more outcome variables)**

Equivalent parametric

**ANOSIM**

Use in place of: **MANOVA**

Nonparametric test:

Predictor variable: **Categorical (2 groups)**

Outcome variable: **Quantitative (groups come from the same population)**

Equivalent parametric

**Wilcoxon Signed-rank test**

Use in place of: **Paired t-test**