The traditional midpoint of the distribution of IQ scores is 100. Because of the Flynn effect or "rising curve" effect, this midpoint ______.
A)had to be moved up to 128 to accommodate improved test performance since 1910
B)has to be moved down by about 3 points per decade
C)remains at 100, but the IQ score distribution has to be recalibrated upward periodically
D)is no longer at the exact centre of the distribution

Question

Quizplus · Accepted Answer

The Flynn effect describes the phenomenon of average IQ scores increasing over time, necessitating periodic recalibration of the scoring system to keep the average score around 100.

The Traditional Midpoint of the Distribution of IQ Scores Is