Despite Being Raised in Two Very Different Environments, Identical Twins

question 79

Multiple Choice

Despite being raised in two very different environments, identical twins Tina and Ginny receive a similar score on a shyness scale. What do these results suggest about the range of reactions for shyness?

• A) It is small.
• B) It is large.
• C) It is inverse.
• D) It is polygenetic.

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Definitions:

Valence

In psychology, the extent to which a person values the expected outcome of an action; in chemistry, the combining power of an element.

Expectancy

The anticipated outcome or occurrence of an event, often used in the context of probability or investment returns.

Imputed Interest

The interest rate that is considered or assumed in the calculation of the cost of a decision, not explicitly paid.

Residual Income

The amount of income that an individual has after all personal debts and expenses have been paid from his or her earnings.