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Positive Reinforcer

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Definition

A positive reinforcer refers to a stimulus or event that, when presented after a behavior, increases the likelihood of that behavior occurring again in the future. It is something desirable or rewarding that strengthens and encourages a desired response.

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