In a randomized experiment (true experiment), if the covariate contains considerable measurement error, the use of ANCOVA would likely result in
A) too much adjustment of means.
B) less of the covariate effect being removed from the dependent variable.
C) an F test that is too liberal.
D) biased estimates of the treatment effects.

Question

Quizplus · Accepted Answer

Measurement error in the covariate reduces the ability of ANCOVA to accurately remove the covariate effect, leading to less adjustment of the dependent variable.

In a Randomized Experiment (True Experiment), If the Covariate Contains