What is the purpose of using an ANCOVA?
A) Examining the effect a treatment or experimental variable has on an outcome variable, whilst isolating the effects of a different variable which may also have an effect on the outcome variable.
B) Examining the effect an outcome variable has on an experimental or treatment variable, whilst isolating the effects of a different variable which may also have an effect on the outcome variable.
C) Examining the effect an independent variable has on a treatment or experimental variable, whilst isolating the effects of the outcome variable.
D) Examining the effect an independent variable has on an outcome variable, whilst isolating the effects of the experimental or treatment variable.

Question

Quizplus · Accepted Answer

ANCOVA (Analysis of Covariance) is used to examine the effect of a treatment or experimental variable on an outcome variable while controlling for the effects of a different variable that may also affect the outcome variable. ANCOVA is used to improve the accuracy of statistical analysis by adjusting for the effects of a covariate. Hence, option A is the correct answer.

What Is the Purpose of Using an ANCOVA