If the Correlation on a Trait Were

question 222

Multiple Choice

If the correlation on a trait were .75 for identical twins, .55 for siblings, .23 for cousins, and .11 for genetically unrelated adopted siblings, one could conclude that

• A)heredity plays no role in that trait.
• B)environment plays no role in that trait.
• C)heredity is a prime contributor to that trait, but environment also plays a role.
• D)environment is the prime contributor to that trait, with heredity making only a minor contribution.

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Definitions:

Most Elastic

Refers to the responsiveness of demand or supply to changes in price or income, with "most elastic" indicating the greatest sensitivity.

Quantity Demanded

The sum total of a service or good that individuals are interested in buying and can afford at an established price.

Price

The monetary contribution expected, required, or made for acquiring something.

Most Inelastic

Describes goods or services with a demand that is least responsive to price changes; price changes have little effect on the quantity demanded.