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Kendra Cherry

Fixed-Interval Schedule - Psychology Definition of the Week

By May 4, 2012

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Definition: A fixed-interval schedule of reinforcement involves delivering reinforcement for the first response after a specific period of time has elapsed. Imagine that you are training a lab rat to press a lever. However, the rat can only be rewarded for its first response following a one-minute interval. As you might imagine, there is often a pause in responding after the reinforcement is delivered, which gradually increases as the reinforcement time draws closer. Learn more in this definition of fixed-interval schedules.

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