What is the most effective way to minimize the differences between two groups of participants if you have already identified their important characteristics that could influence the dependent measure?
A) Match the groups along the important characteristics.
B) Randomize the assignment of participants to the two groups.
C) Randomize the order of levels along the independent variable(s).
D) Use a mixed design.

Question

Quizplus · Accepted Answer

Matching the groups along the important characteristics ensures that the groups are equivalent on those variables, minimizing differences that could affect the dependent measure.

What Is the Most Effective Way to Minimize the Differences