- (A) Cross-sectional research seeks to identify the impact of aging by comparing different age
groups at the same time. However, while it is possible that twenty-year-olds and fifty-year-olds
differ due to the passage of time, it is also possible that they differ because twenty-year-olds were
born in the 1980s and teens in the 1990s while fifty-year-olds matured in the 1960s; such
differences are known as cohort effects. Choices B, C, and D are drawbacks to longitudinal
research, and the effectiveness of cross-sectional research does not seem to be linked to the
socioeconomic background of the participants.
marvins-underground-k-12
(Marvins-Underground-K-12)
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