To find out if older people are wiser than younger people, Samantha gives 20-year-olds, 40-year-olds, and 60-year-olds a "wisdom" test. If Samantha finds that, on average, wisdom scores increase in each older group, what should she conclude?
A) As people get older, they get wiser.
B) Older cohorts are wiser, but it is unclear if wisdom increases with age.
C) Nothing. It's a lousy study because it is not constructed well.
D) As people get older, it takes them more time to answer test questions.

Question

Quizplus · Accepted Answer

Samantha's study shows that older cohorts score higher on a wisdom test, but it does not establish a causal relationship between age and wisdom. It only shows a correlation at a specific point in time, without tracking changes in individuals over time.

To Find Out If Older People Are Wiser Than Younger