An interaction occurs whenever:
A)the manipulation check indicates a manipulation failure.
B)the effect of one independent variable changes across levels of a second independent variable.
C)both independent variables have an effect.
D)the dependent variable is effectively manipulated in a factorial design.

Question

Quizplus · Accepted Answer

An interaction occurs in a factorial design when the effect of one independent variable on the dependent variable changes across levels of a second independent variable. In other words, the effect of one independent variable depends on the level of the other independent variable, indicating an interaction between the two variables. None of the other options are indicative of an interaction in a factorial design.

An Interaction Occurs Whenever