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Arranging Consequences that Increase Behavior. Reinforcers. Primary Secondary Natural Contrived. Positive Reinforcement. Contingent presentation of a stimulus, immediately following a response, that INCREASES the future rate and/or probability of the response
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Reinforcers Primary Secondary Natural Contrived
Positive Reinforcement • Contingent presentation of a stimulus, immediately following a response, that INCREASES the future rate and/or probability of the response • Refers to the relationship between the behavior and the consequence
Positive Reinforcer “the consequential stimulus event itself. It: • Increases or maintains the future rate and/or probability of occurrence of a behavior • Is administered contingently upon the production of a desired or requested behavior • Is administered immediately following the production of the desired or requested behavior
9-step sequence for selecting reinforcers • Consider age, interests, and appetites of the person whose behaviors you with to strengthen; • Consider the behavior you wish to strengthen through reinforcement • List potential reinforcers • The Premack Principle • Consider asking the person • Consider novel reinforcers • Consider reinforcers that are natural • Select the reinforcer(s) you will use • Make a record of the behavior
6 Ways to Delay Satiation • Assign a particular reinforcer to each instructional task • Shorten the instructional session in which the edible reinforcer is being used • Switch to an alternative reinforcer • Decrease the size of pieces • Have an array of reinforcers • Reinforce every third correct response
Other Reinforcers • Generalized reinforcer: when a reinforcer is associated with a variety of behaviors or with access to a variety of other primary or secondary reinforcers • Social reinforcer: a secondary reinforcer used almost unconsciously and unsystematically by teachers and includes demonstrations of approval or attention
Token Economy Reinforcement Program • It is a symbolic reinforcement system where students receive tokens for specific appropriate behaviors, which may be exchanged for objects or activities that have been identified as reinforcing. • As students learn to associate the tokens with the purchase of reinforcers, the tokens themselves become reinforcing.
What students need to know about a token system • What behaviors are required • What are the backup reinforcers • The cost of each backup reinforcer • When tokens can be exchanged for the backup reinforcers
Sample Token System • Behavior Required: Raise your hand and provide answer or contribution to class discussion…onlywhen called upon. • Back up reinforcers: candy • Cost: one ticket per piece of candy • When can tokens be exchanged?: at the end of class
Schedules of Reinforcement • Continuous (CRF): (1:1) • Intermittent: • Ratio schedule • Fixed • Variable • Interval schedule: • Fixed • Variable • Response-Duration
Intermittent Schedule of Reinforcement • Ratio Schedule: reinforcer delivered per NUMBER • Fixed: Only after a specific number of tasks are completed • Variable: Delivered following an average number of occurrences • Interval Schedule: reinforcer delivered per TIME • Fixed: Only after a specific number of minutes have passed • Variable: Delivered following an average number of minutes
Negative Reinforcement Cycle • Student is confronted with an aversive stimulus • Student engages in inappropriate behavior • Teacher removes aversive stimulus • Student is negatively reinforced for the inappropriate behavior • Next time the student in confronted by the aversive stimulus, the cycle is repeated