In a factorial design,a main effect is the effect of each of the separate _____ variables by themselves.
A) independent
B) dependent
C) correlated
D) situational

Question

Quizplus · Accepted Answer

In a factorial design, independent variables are manipulated and their effects on the dependent variable are observed. Main effects refer to the effect of each independent variable by themselves, and are calculated by comparing the average values of the dependent variable across different levels of that independent variable while holding all other independent variables constant. Therefore, the correct answer is A, independent variables.

In a Factorial Design,a Main Effect Is the Effect of Each