Which one of the following statements is always true when an interaction exists between the variables in a factorial design?
A) the effect of one independent variable depends, to some extent, on which level of the second variable is considered
B) One independent variable has an effect regardless of the level of a second variable
C) there is as least one significant main effect
D) all of these

Question

Quizplus · Accepted Answer

An interaction in a factorial design means that the effect of one independent variable on the dependent variable changes depending on the level of the other independent variable. This implies that the influence of one variable is not consistent across all levels of the other variable, which is what option A describes.

Which One of the Following Statements Is Always True When