When using matched groups for a one-way within-groups ANOVA, a researcher should "match" participants on:
A) how many levels of the independent variable they experience.
B) all of the variables that the researcher wants to control.
C) their previous research experience.
D) the timing of their participation so that they meet the same people each time.

Question

Quizplus · Accepted Answer

Matched groups should be created by controlling for all of the variables that the researcher wants to control. This ensures that the groups are as similar as possible before the independent variable is manipulated.

When Using Matched Groups for a One-Way Within-Groups ANOVA, a Researcher