When choosing between a within-participants design and a between-participants design, one is often considering a tradeoff between
A) a more sensitive design with the former and a more controlled design with the latter.
B) internal validity with the former and an ability to generalize results to a larger population with the latter.
C) a more sensitive design with the former and a more economical design with the latter.
D) controlling for more extraneous variables with the former and having results that are more applicable to the "real world" with the latter.

Question

Quizplus · Accepted Answer

A within-participants design (where the same participants are used in all conditions) is generally more sensitive to detecting differences or changes because it controls for individual differences among participants. A between-participants design (where different participants are used in each condition) can be more controlled in terms of experimental conditions because it minimizes the potential for order effects or carryover effects from one condition to another.

When Choosing Between a Within-Participants Design and a Between-Participants Design