Mary Found an Interaction Between a Defendant's Gender (Male or Female)

Multiple Choice

Mary found an interaction between a defendant's gender (male or female) and their appearance (attractive or unattractive) on judgments of criminal behavior. She analyzes the difference between judgments for unattractive defendants who are male or female. She then performs the same analysis for attractive males and females. Mary has examined the:

A) main effect of appearance.
B) simple main effect of appearance.
C) main effect of gender.
D) simple main effect of gender.