Because participants are measured only once in the cross-sectional design, researchers need not be concerned about such difficulties as __________ and __________.
A) cohort effects; practice effects
B) selective attrition; cohort effects
C) cohort effects; biased sampling
D) participant dropout; practice effects

Question

Quizplus · Accepted Answer

In a cross-sectional design, participants are measured at one point in time, so there is no concern about participant dropout or practice effects, which are issues in longitudinal studies where participants are measured multiple times.

Because Participants Are Measured Only Once in the Cross-Sectional Design