🧠ap psychology review

Fixed Interval

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

A fixed interval is a schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed.

AP course connection

Topic 4.3: 4.3 Operant Conditioning

Unit 4

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