Researchers Who Have Analyzed IQ Scores of Adopted Twins Have

question 93

Multiple Choice

Researchers who have analyzed IQ scores of adopted twins have found that identical twins are more like one another in IQ than fraternal twins are. They also have found that IQs of adopted children are more strongly correlated with the IQs of their biological parents than with the IQs of their adoptive parents. These research results suggest

• A) that environment has no impact upon IQ.
• B) that intelligence has a genetic component.
• C) that a child's intellectual capacity is fixed at birth.
• D) that a child's biological heritage predicts her lifetime patterns of achievement and accomplishment.

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Definitions:

Perceived Social Support

The feeling or belief that one has a network of caring and supportive relationships.

Rates of Mortality

Statistical measure of the number of deaths in a specific population, typically expressed per 1,000 or 100,000 persons per year.

Older Adults

Individuals typically aged 65 and over, often marking a period of retirement, potential health issues, and adjustment to changes in lifestyle and social roles.

Society

A group of individuals living together in a more or less ordered community, sharing customs, laws, and organizations.