Comparing the intelligence test scores among people from distinctly different age cohorts requires

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Cross-sectional studies involve comparing groups of people who differ in age at the same point in time, which allows for comparing intelligence test scores among people from different age cohorts. Factors analysis is a statistical technique used to reduce data complexity, heritability estimates relate to genetic influences on intelligence, and longitudinal studies involve following the same group of individuals over time, which may not be practical for comparing intelligence test scores across different age groups.

Comparing the Intelligence Test Scores Among People from Distinctly Different