By the time a well-designed longitudinal study has been going for 10 years and has something relevant to tell us about adolescence, the findings may not be relevant to today's youth because of

Question

Quizplus · Accepted Answer

The cohort effect refers to the fact that a group of people who were born and raised during a particular time period may have had experiences and influences that were unique to that time period. This means that the findings of a longitudinal study conducted with a particular cohort of adolescents may not be generalizable to today's youth, who are growing up in a different time period with different experiences and influences. Therefore, option D is the best choice. Option A and B refer to issues with the study design itself, while option C refers to a specific construct being studied and not necessarily the generalizability of the findings.

By the Time a Well-Designed Longitudinal Study Has Been Going