If, while using the nonequivalent control group design, the researcher discovers that groups differ on the pretest measure, one technique which can be used to statistically equalize the groups on the pretest is ____________________.
A) factor analysis
B) Analysis of Variance (ANOVA)
C) parallel forms pretesting
D) Analysis of Covariance (ANCOVA)

Question

Quizplus · Accepted Answer

Analysis of Covariance (ANCOVA) can be used to statistically control for pretest differences between groups in the nonequivalent control group design. This involves using the pretest scores as a covariate in the statistical analysis to adjust for any initial group differences on this variable.

If, While Using the Nonequivalent Control Group Design, the Researcher