According to some psychologists, there is a heritability estimate of about 50 percent for intelligence in the general population. This statement means that:
A) half of an individual's IQ score is due to genes, and the other half is due to environmental factors.
B) the intelligence of about half of the general population is primarily determined by their genes, and the intelligence of the other half is primarily determined by their environment.
C) about half of the difference in IQ scores among people within a particular group is due to differences in their genetic makeup.
D) half of the population has IQ scores that are above the inherited norm, and half of the population has IQ scores that are below the inherited norm.

Question

Quizplus · Accepted Answer

Heritability estimates indicate the proportion of variation in a trait within a population that can be attributed to genetic differences. A 50% heritability for intelligence means that genetic differences account for about half of the variation in IQ scores among individuals in a population, not within an individual or between populations.

According to Some Psychologists, There Is a Heritability Estimate of About