Practice effects and participant drop-out are two problems especially associated with which principal method for studying the effects of aging on memory?
A)Archival
B)Cross-sectional
C)Meta-analysis
D)Longitudinal
E)Survey

Question

Quizplus · Accepted Answer

Practice effects and participant drop-out are particularly problematic in longitudinal studies because the same individuals are followed over time and may become more familiar with the test items or may drop out of the study due to factors unrelated to aging. These issues are less of a concern in cross-sectional or archival studies where different individuals of different ages are tested at one time point.

Practice Effects and Participant Drop-Out Are Two Problems Especially Associated