A rat's lever presses occasionally produce food. Across conditions, the food is delivered either immediately after a lever press or after some delay. Which statement is TRUE?

A) The rate of lever pressing is relatively unaffected by delays ranging from a few seconds to about 30 seconds.
B) The rate of lever pressing increases as a function of its delay.
C) The rate of lever pressing first increases and then decreases as a function of its delay.
D) The rate of lever pressing decreases as a function of its delay.


D) The rate of lever pressing decreases as a function of its delay.

Psychology

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Indicate whether this statement is true or false.

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_______________, one of the oldest theories of personality, was very influential and still appeals to some psychologists today

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