If you find that income significantly varies on the basis of gender, you have ______.
A)a main effect
B)an interaction effect
C)both a main effect and an interaction effect
D)neither a main effect nor an interaction effect

Question

Quizplus · Accepted Answer

A main effect occurs when one independent variable has a significant impact on the dependent variable, regardless of the level of the other independent variable. In this case, gender is the independent variable and income is the dependent variable, and if income significantly varies based on gender, there is a main effect of gender on income. An interaction effect occurs when the relationship between two independent variables on the dependent variable is not additive, meaning that the effect of one independent variable on the dependent variable depends on the level of the other independent variable. This scenario is not present in the given context.

If You Find That Income Significantly Varies on the Basis