Which test should be used to determine whether there are differences between the means of several groups that can be segmented according to two different explanatory variables?
A)a one-way ANOVA
B)a two-way ANOVA
C)multiple comparisons procedures (without contrasts)
D)multiple comparisons procedures (with contrasts)

Question

Quizplus · Accepted Answer

A two-way ANOVA should be used when there are multiple groups that can be segmented according to two different explanatory variables. This test allows for the analysis of differences between means for each variable independently, as well as any interaction effects between the two variables.

Which Test Should Be Used to Determine Whether There Are