Our Bodies Have a Rhythm That Varies with the Time

question 63

Multiple Choice

Our bodies have a rhythm that varies with the time of day, which is referred to as _____.

• A) biorhythms
• B) lunar cycle
• C) sleep-wake cycle
• D) biometrics
• E) circadian cycle

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Definitions:

Fixed-interval

A schedule of reinforcement where responses are reinforced after a specified amount of time has passed, used in the study of behavior.

Variable-interval

In operant conditioning, a reinforcement schedule in which a response is rewarded after an unpredictable amount of time has passed.

Fixed-ratio

A schedule of reinforcement where a response is reinforced only after a specified number of responses.

Variable-ratio

A schedule of reinforcement where a response is rewarded after an unpredictable number of responses, making it a powerful maintenance strategy.