Some of the Most Convincing Evidence That Helps to Explain

question 17

Multiple Choice

Some of the most convincing evidence that helps to explain the observed increase in the incidence of anorexia nervosa and bulimia nervosa over the past half century is

• A)improved diagnostic and reporting practices.
• B)concurrent increases in the rate of depression.
• C)the generally improved health of the society and an increased emphasis on diet and exercise.
• D)the decrease in the weight of both Miss America contestants and Playboy centerfold models.

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Definitions:

Spontaneous Recovery

The reappearance of a learned response after its apparent extinction, without the need for further conditioning or training.

Fixed-Ratio

A schedule of reinforcement where a response is rewarded only after a specified number of responses, in behavioral psychology.

Fixed-Interval

A schedule of reinforcement where rewards are given after a predetermined interval of time has passed.

Variable-Ratio

A reinforcement schedule where a response is reinforced after an unpredictable number of responses, often used in behavior modification.