Weaknesses of longitudinal studies include all of the following EXCEPT:
A)cohort effects.
B)selective attrition.
C)practice effects.
D)inability to examine individual development over time.

Question

Quizplus · Accepted Answer

Longitudinal studies actually do allow for the examination of individual development over time, so option D is not a weakness. Instead, cohort effects (the influence of a person's age group on the outcome of the study) can be a weakness, as can selective attrition (when participants drop out of the study, potentially biasing the results), and practice effects (when participants get better at the tests simply due to repeated exposure).

Weaknesses of Longitudinal Studies Include All of the Following EXCEPT