The main reason for using a 2 × 2 factorial design instead of two separate experiments (with one IV per experiment) is to:
A)find the main effects of each independent variable.
B)find an interaction between the independent variables.
C)save time.
D)manipulate one independent variable at a time.

Question

Quizplus · Accepted Answer

A 2 × 2 factorial design allows researchers to investigate not only the main effects of each independent variable but crucially the interaction effect between them, which cannot be assessed by conducting separate experiments for each variable.

The Main Reason for Using a 2 × 2 Factorial