Researchers Who Have Analyzed the IQ Scores of Adopted Twins

question 104

Multiple Choice

Researchers who have analyzed the 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 the 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:

Total Cost

The sum of all costs incurred in the production of goods or services, including fixed and variable costs.

Monopoly Profit

The excess profit that a monopoly firm makes due to its control over the market, preventing other firms from entering the market.

Total Cost

The entire cost of producing a given level of output, including both fixed and variable costs.

Monopoly Model

A market structure characterized by a single seller facing no competition, influencing prices and quantities of the product or service offered.