What Does the Author of the Textbook Mean When She

Multiple Choice

What does the author of the textbook mean when she writes, "We don't live in a main effect world"?

A) She means that psychologists do not like to examine main effects.
B) She means that main effects are not important.
C) She means that interactions are common in everyday life.
D) She means that studies that produce interactions are the only studies worth conducting.