Statistical Tests by Level of Measure

IV's, Levels, Groups

Level of
Measurement (DV) One IV
2 levels
Ind. Groups One IV
2 levels
Dep. Groups One IV
3+ levels
Ind. Groups One IV
3+ levels
Dep. Groups Two+ IV's
Factorial Two+ IV's
Factorial

Interval/Ratio

t-test for independent groups

t-test for matched groups

One-Way ANOVA (randomized)

One-Way ANOVA (repeated measures)
Two-Way ANOVA Two-Way ANOVA (repeated measures)

Ordinal

Mann-Whitney-U Test

Wilcoxon Sign Test

Kruskal-Wallis Test

Friedman Test
- -

Nominal

Chi-Square Test
-
Chi-Square Test
- - -

	IV's, Levels, Groups
Level of Measurement (DV)	One IV 2 levels Ind. Groups	One IV 2 levels Dep. Groups	One IV 3+ levels Ind. Groups	One IV 3+ levels Dep. Groups	Two+ IV's Factorial	Two+ IV's Factorial
Interval/Ratio	t-test for independent groups	t-test for matched groups	One-Way ANOVA (randomized)	One-Way ANOVA (repeated measures)	Two-Way ANOVA	Two-Way ANOVA (repeated measures)
Ordinal	Mann-Whitney-U Test	Wilcoxon Sign Test	Kruskal-Wallis Test	Friedman Test	-	-
Nominal	Chi-Square Test	-	Chi-Square Test	-	-	-