Between 1932 and 2002, IQ
A) decreased by a total of 14 points.
B) increased by a total of 22 points.
C) showed little fluctuation.
D) increased for black children and decreased for white children.

Question

Quizplus · Accepted Answer

The correct answer is B) increased by a total of 22 points. This phenomenon is known as the Flynn effect, which describes the substantial and long-sustained increase in both fluid and crystallized intelligence test scores measured in many parts of the world over the 20th century.