A researcher wants to take advantage of the strengths of a within-groups design but does not want to have each participant experience all levels of the independent variable.She can accomplish this through what other design option?
A) a series of independent-samples t tests
B) counterbalancing
C) matched groups
D) a series of Tukey HSD post hoc tests

Question

Quizplus · Accepted Answer

Matched groups design allows for the advantages of a within-groups design but only requires participants to experience a subset of conditions. This is done by pairing participants who are similar on relevant characteristics and then assigning one member of each pair to each condition. This controls for individual differences and creates equivalent groups, allowing for a valid comparison between conditions.

A Researcher Wants to Take Advantage of the Strengths of a Within-Groups