Simple main effect tests are necessary to analyze interactions,not main effects.

Question

Quizplus · Accepted Answer

Simple main effect tests are used to analyze the differences within each level of another factor, specifically when there is an interaction effect present, not for analyzing the main effects directly. They help in understanding how the levels of one factor affect the outcome at each level of another factor, indicating the nature of the interaction.

Simple Main Effect Tests Are Necessary to Analyze Interactions,not Main