The Concordance Rate for Anorexia Nervosa in Identical Twins Is

question 177

Multiple Choice

The concordance rate for anorexia nervosa in identical twins is 70 percent. This means that:

• A) fraternal twins also have a 70 percent chance of developing anorexia.
• B) in 70 percent of identical twins, both twins have anorexia.
• C) fraternal twins have a 30 percent rate of anorexia.
• D) if one identical twin has anorexia, there is a 70 percent chance that the other twin has anorexia too.

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Definitions:

Margin

The difference between the selling price of a good or service and the cost of producing it, often expressed as a percentage of the selling price.

Return on Investment

A measure of the profitability of an investment, calculated as a percentage of the return relative to the investment's cost.

Investment Opportunity

A potential financial venture or asset purchase that could yield returns in the future.

ROI

Return on Investment, a metric used to evaluate the efficiency of an investment or compare the efficiency of several different investments.