medium · MCAT psych-soc
A behaviorist is trying to train a rat to press a lever. Initially, the rat is given a food pellet every time it presses the lever. Later, the researcher switches to a schedule where the rat is only rewarded after an average of 10 presses, but the exact number of presses required varies unpredictably from one reward to the next.
Which reinforcement schedule is being used in the second phase?
- Variable-ratio
- Fixed-ratio
- Fixed-interval
- Variable-interval
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