CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -Heritability refers to the extent to which variations and deviations among group members can be attributed to gene influence.

Detailed explanation-2: -However, for intelligence, heritability increases linearly, from (approximately) 20% in infancy to 40% in adolescence, and to 60% in adulthood. Some evidence suggests that heritability might increase to as much as 80% in later adulthood47 but then decline to about 60% after age 80.

Detailed explanation-3: -Evidence of Genetic Influences on Intelligence Studies show that IQ scores of identical twins may be more similar than those of fraternal twins. Siblings who were raised together in the same environment have more similar IQs than those of adopted children who were brought up in the same household.

Detailed explanation-4: -Heritability is a measure of how well differences in people’s genes account for differences in their traits.

Detailed explanation-5: -Moreover, the psychologist Robert Plomin and others have found that evidence of the heritability of intelligence increases with age; this suggests that, as a person grows older, genetic factors become a more important determinant of intelligence, while environmental factors become less important.