Often, Psychologists Are Interested in the Degree to Which Genetic

question 72

Multiple Choice

Often, psychologists are interested in the degree to which genetic and environmental factors play a role in determining intelligence, so they study twins raised in different homes and compare them with twins reared together. A potential problem with the interpretation of such results is that

• A) all pairs of children in the same household will not necessarily have equally similar experiences.
• B) for the twins reared apart, there is a delay between birth and placement in foster homes which may span a critical learning period.
• C) prenatal experiences are more similar for twins than for other children.
• D) all of these

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Definitions:

Marginal Costs

The supplementary cost that comes with producing an extra unit of a good or service.

Mass Affordability

The widespread ability of the average consumer to purchase goods and services, often due to lower prices or increased income levels.

Economies of Scale

Enterprises see cost efficiencies due to their operating scale, with the cost for every unit of output generally declining as the scale enlarges.