The best summary statement to characterize the heritability of intelligence is that
A)environmental factors only minimally affect intelligence.
B)genetic factors only minimally affect intelligence.
C)genetic factors account for about half of the variation in intelligence test scores among individuals.
D)genetic factors account for about 90% of the variation in intelligence test scores among individuals.

Question

Quizplus · Accepted Answer

Studies have shown that genetic factors account for about 50% of the variation in intelligence test scores among individuals. However, environmental factors such as education, nutrition, and upbringing can also affect intelligence to some degree. Therefore, it is important to consider both genetic and environmental influences when studying intelligence. Option A and B are not accurate statements, as both genetic and environmental factors play a role in shaping intelligence. Option D is an overestimation, as studies have consistently found that genetic factors account for around 50% of the variation in intelligence.

The Best Summary Statement to Characterize the Heritability of Intelligence