If you find that income significantly varies by age regardless of job experience, you have ______. a. an interaction effect b. both a main effect and an interaction effect c. a main effect for age d. a main effect for job experience

Respuesta :

One have a main effect for age when income significantly varies by age regardless of the extent of job experience.

What is a main effect?

This means the effect of a single independent variable on the dependent variable while ignoring all other independent variables.

Hence, we have a main effect for age when income significantly varies by age regardless of the extent of job experience.

Therefore, the Option C is correct.

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