Suppose a Researcher Finds a Correlation Coefficient of

question 5

Multiple Choice

Suppose a researcher finds a correlation coefficient of .40 between identical twins' scores on a measure of a personality trait. She additionally finds a correlation coefficient of .40 between fraternal twins' scores on the same measure. What might she conclude regarding the genetic and environmental bases of the trait

• A)The trait reflects shared environmental factors because the two coefficients are moderate and similar.
• B)The trait reflects genetic factors because the coefficients are moderate.
• C)The trait reflects shared environmental factors because the two coefficients are not especially high.
• D)The trait reflects non-shared environmental factors because the two coefficients are not especially high.

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Definitions:

Demand Schedule

A table or graph showing the quantity of a good or service that consumers are willing and able to purchase at various price points, illustrating the relationship between price and demand.

Economic Profit

A measure of profitability calculated by subtracting both explicit and implicit costs from total revenues, indicating the financial success beyond recovering invested costs.

Maximum

The highest attainable level or value in a given set of data or a particular function.

Monopolistic Competition

A market structure characterized by many sellers offering differentiated products, with some control over pricing but in a competitive environment.