The primary problem with a cross-sectional developmental design is that differences between age groups may not be caused by age but rather are caused by
A)history effects.
B)regression toward the mean.
C)cohort effects.
D)differential attrition.

Question

Quizplus · Accepted Answer

The primary problem with a cross-sectional developmental design is cohort effects. Cohort effects occur when people from different age groups have experienced different historical and cultural events that may influence their development. This makes it difficult to draw conclusions about developmental changes across ages, as the observed differences may be due to cohort effects rather than age-related factors.

The Primary Problem with a Cross-Sectional Developmental Design Is That