Schedules of Reinforcement

1. Fixed ratio.
Buy 4 coffees, get your fifth one free.
In operant conditioning, a fixed-ratio schedule is a schedule of reinforcement where a response is reinforced only after a specified number of responses.

> See earlier post on the Goal Gradient Effect




2. Variable ratio.
Fishing
In operant conditioning, a variable-ratio schedule is a schedule of reinforcement where a response is reinforced after an unpredictable number of responses. This schedule creates a steady, high rate of responding.

 













3. Fixed interval.
Footballer signs contract whereby his salary increases are renegotiated every three years.
In operant conditioning, a fixed-interval schedule is a schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed.

4. Variable interval.
Waiting for a taxi.
In operant conditioning, a variable-interval schedule is a schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed.

SIMPLES

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Properly used, positive reinforcement is extremely powerful ~ B. F. Skinner