🧠ap psychology review

Fixed-interval schedule

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 reinforcement schedule in which reinforcement is delivered after a fixed amount of time has elapsed, producing a scalloped pattern on a cumulative response graph.

AP course connection

Topic 3.8: 3.8 Operant Conditioning

Unit 3

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