In an experiment to study the effectiveness of three different teaching programmes on children's achievement in mathematics, what might not be an appropriate covariate?
A) IQ
B) Mathematical aptitude
C) Age
D) Height*

Question

Quizplus · Accepted Answer

Height is not relevant or related to children's achievement in mathematics, therefore it would not be an appropriate covariate. IQ, mathematical aptitude, and age are all factors that could potentially impact a child's achievement in mathematics and would be appropriate covariates.

In an Experiment to Study the Effectiveness of Three Different