Human Growth and Development / Unit 11 HGD 1543 short lesson, about 20 seconds
Abilities Across Early Adulthood
Captions available
The idea
Fluid intelligence peaks in the twenties, while crystallized intelligence, accumulated knowledge, keeps rising through adulthood; working memory improves through the twenties.
In practice
A twenty-five-year-old quicker on novel puzzles than her parents, who know more words.
Where people slip
The misconception is that all intelligence declines after the twenties; crystallized intelligence and vocabulary keep rising.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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