Genetic contribution to intelligence increases with age because
A) the expression of intelligence genes accumulates over time.
B) a person has more years of schooling.
C) a person has greater control over his or her environment.
D) the number of genes that contribute to intelligence increases.
E) IQ increases.

Question

Quizplus · Accepted Answer

As people age, they have more control over their environment, leading to a greater ability to enhance their cognitive abilities. Genetic contribution to intelligence may remain relatively stable or increase slightly over time, but it is mostly due to changes in the environment rather than genetic expression or an increase in the number of genes contributing to intelligence. Years of schooling and IQ may increase with age, but this is not directly related to the genetic contribution to intelligence.

Genetic Contribution to Intelligence Increases with Age Because