Communication Research: Choosing Statistical Tests

Wikipage

Nature of Question	Number of IV	Number of DV	Number of CV	Level of measurement	Distribution of scores	Statistical test
Group comparison	1	1	0	Categorical/Continuous	Normal	t-test
Group comparison	1 or more	1	0	Categorical/Continuous	Normal	Analysis of Variance (ANOVA, F-test)
Group comparison	1 or more	1	1	Categorical/Continuous	Normal	Analysis of Covariance (ANCOVA)
Group comparison	1	1	0	Categorical/Continuous	Non-normal	Man-Whitney U test
Association between groups	1	1	0	Categorical/Categorical	Non-normal	Chi-square test
Relate variables	1	1	0	Continous/Continous	Normal	Pearson product moment correlation
Relate variables	2 or more	1	0	Continous/Continous	Normal	Multiple regression
Relate variables	1	1 or more	0	Categorical/Categorical	Non-normal	Spearman rank-order correlation