Suppose the omnibus analysis of variance for a 2 * 2 complex design reveals only a statistically significant main effect of one independent variable.To understand the effect of this variable the researcher should
A) compute simple main effects analyses.
B) use t-tests to compare two means at a time.
C) examine the means for the independent variable collapsed across the other independent variable.
D) all of these

Question

Quizplus · Accepted Answer

The researcher should examine the means for the independent variable collapsed across the other independent variable to understand the main effect, as it shows the overall effect of that variable regardless of the levels of the other variable.

Suppose the Omnibus Analysis of Variance for a 2