Human Growth and Development / Unit 1 HGD 0061 short lesson, about 20 seconds
Cross-Sectional Designs
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The idea
A cross-sectional design compares different age groups at a single point in time, such as twelve-, fourteen-, sixteen- and eighteen-year-olds.
In practice
Four age groups tested in the same week, then compared with each other.
Where people slip
It is fast and free of attrition and practice effects, but it cannot track individuals, and cohort effects remain.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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