222@26

Schedules of  Reinforcement

2         Partial Reinforcement Effect

Simple Schedules:                                          

Ratio Schedules

 1) Fixed-Ratio  FR 1(CRF) FR 20   FR200

Define:

Examples: a) delivery person who visits same # of homes         b) Piecework

                    c) flights of stairs

                    d) doctor and how many patients he or she sees

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Chief Personality characteristics:

1) Post reinforcement pause /zero rate of responding after a ratio run caused by ratio strain

2) once responding begins a steady state begins

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II. Variable-ratio schedule:

4Define:

Examples:

1) slot machines

2) sports: golf par 3 birdie/bogie

3) lotteries

4) fishing

5) hunting

6) dating

7) gambling

8) all sports

Chief personality characteristic: High steady state

responding with no pauses. Reinforces fast inter response times (IRT).

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Interval Schedules     

3) Fixed Interval:

Define: FI Scallop

Examples: 1) Bus stop

                   2) Automatic clothes washer

                   3) Cooking

                   4)  Making Jell-O

                    5) Waiting for your precise

                          delivery from postperson

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Chief personality characteristic:

The scallop: Response rate starts slowly but begins to increase rather quickly the closer the reinforced interval approaches. Differential rft

of short and long interresponse times (IRT). 

4) Variable-Interval

Define:Examples: 1) taking your car to a mechanic                2) doctor's office

                                3) busy phone

                                4) cab, bus, plane

                                5) Reilly center and your mail

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                                 6) Class, movies, etc

Chief personality characteristic: Steady moderate rate of responding.

-Control and schedules

other schedules: conjunctive

drl, drh, chained (VR the VI), concurrent.