A problem with cross-sectional studies is that they ________.
A) don't distinguish age differences from cohort differences
B) are less trustworthy than either biographical or longitudinal studies
C) don't distinguish differences among age groups
D) take longer to run than longitudinal studies

Question

Quizplus · Accepted Answer

Cross-sectional studies only compare different age groups at one point in time. This makes it difficult to distinguish between differences due to age and differences due to cohort (i.e. growing up in different historical periods with different experiences and influences).

A Problem with Cross-Sectional Studies Is That They ________