What are the main assumptions of an ANCOVA? (You may select more than one option.)
A) Independence of the covariate and treatment effect
B) Homogeneity of the regression slopes
C) Interdependence of the covariate and the treatment effect
D) Variance explained jointly by the covariate and the experimental effect

Question

Quizplus · Accepted Answer

ANCOVA assumes that the covariate and treatment effect are independent and that the regression slopes are homogenous across the groups being compared. It does not assume interdependence of the covariate and treatment effect, and the variance explained jointly by the covariate and experimental effect is not an assumption, but rather a result of the analysis.

What Are the Main Assumptions of an ANCOVA? (You May