If you are tested longitudinally for skills involving the use of crystallized intelligence, at which of the following ages would you expect to have the highest score?
A) age 20
B) age 30
C) age 40
D) age 50

Question

Quizplus · Accepted Answer

Research shows that crystallized intelligence remains high and perhaps even increases throughout middle age, thus the oldest person should have the highest score with regard to crystallized intelligence.

If You Are Tested Longitudinally for Skills Involving the Use