Consider a 2 x 2 experiment design in which both study time and sleep time have been manipulated and learning has been measured. An interaction between study time and sleep time can be interpreted to mean which of the following?

Question

Quizplus · Accepted Answer

An interaction effect in a 2 x 2 experiment design indicates that the effect of one independent variable (e.g., study time) on the dependent variable (e.g., learning) changes depending on the level of the other independent variable (e.g., sleep time). This means the impact of study time on learning is not consistent across different amounts of sleep, which is what choice C describes.

Consider a 2 X 2 Experiment Design in Which Both