ABA Assist

Fixed-Ratio Schedule

Also called: FR schedule, FR

Definition

A schedule in which reinforcement follows a set number of responses — FR 5 means every fifth response is reinforced. It typically produces a high, steady rate of responding with a pause after each reinforcer, and a ratio that is raised too quickly produces ratio strain, where responding breaks down.

Example

  • A learner earns a break after every three worksheets completed.

Not fixed-ratio schedule

  • A break after an average of three worksheets, sometimes two, sometimes five. That is a variable ratio.

Commonly confused with

See also

Written from

  • ferster-skinner-1957

Written from Ferster and Skinner (1957). No textbook glossary consulted.

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