Author Question: Two common confounding variables that must be controlled in a nonequivalent control-group design are ... (Read 85 times)

bobbysung · **on:** Aug 4, 2018

Two common confounding variables that must be controlled in a nonequivalent control-group design are

A) selection and regression to the mean.
B) selection and maturation.
C) maturation and regression to the mean.
D) sequence effects and maturation.

Question 2

In which of the following is comparing a pretest-posttest scores for experimental and control groups a typical strategy?

A) all experimental studies
B) all quasi-experimental studies
C) nonequivalent control-group designs
D) between-subjects designs