If a researcher wanted to examine all of the possible combinations of two or more independent variables, she would want to use a ______ research design.

A) factorial
B) main effect
C) interaction effect
D) single-factor

Factorial Research

A type of experimental research design that involves multiple independent variables and examines their main effects as well as the interaction effects between them.

Independent Variables

Variables in an experiment that are manipulated or changed to observe their effect on dependent variables.

Combinations

Choosing elements from a broader group without regard to the sequence in which they are selected.