Schedules of Reinforcement

Kelsey and Brook

Fixed- Ratio

Every time you mow the lawn you get $50.

Reinforcer: Getting $50.

Variable Ratio

The odds of squirrels getting hit by a car while running across the street.

Reinforcer: Death.

Fixed Interval

You get out of school at the same time everyday.

Reinforcer: Leaving school.

Variable Interval

You get a bike by surprise on Christmas morning.

Reinforcer: A bike.

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