The Flynn effect describes the observation that
A) IQ test performance has been rising steadily in the industrialized world since the 1930s.
B) heritability estimates of intelligence vary widely.
C) the IQ scores of children raised in substandard environments gradually decrease as they get older.
D) the reaction range of intelligence is identical for the vast majority of the population.

Question

Quizplus · Accepted Answer

The Flynn effect refers to the fact that IQ test performance has been steadily increasing in industrialized countries since the 1930s. This means that as a group, people are getting better at these tests over time. This phenomenon was first discovered by James Flynn in the 1980s and has been the subject of much research and speculation since then.

The Flynn Effect Describes the Observation That