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Schedules of Reinforcement
Week 7 notes
25
Education
Graduate
03/02/2010

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Term
schedule of reinforcement
Definition
a rule that states under what conditions a reinforcer will be delivered
Term
continuous reinforcement
Definition
each occurrence of a response produces a reinforcer
Term
intermittent or partial reinforcement
Definition
some responses produce a reinforcer and others do not
Term
schedule effects
Definition
the particular pattern and rate of performance produced by different schedules
Term
4 basic types of schedules
Definition
ratio schedules, interval schedules, rate schedules, response independent schedules
Term
fixed ratio schedule
Definition
a reinforcer is delivered following a constant number of responses. FR 20 - 20th, 40th, 60th, etc, would be reinforced
Term
fixed ratio schedule effects
Definition
post reinforcement pause, followed by a high rate of response run, followed by reinforcement, followed again by a post reinforcement pause. repeating pattern
Term
variable ratio schedule
Definition
reinforcer is delivered following a variable number of responses which average to a certain number. VR 5 - 2, 10, 14, 20, 25, etc. are reinforced.
Term
variable ration schedule effects
Definition
high, steady rate of responding
Term
fixed interval schedules
Definition
first response after a fixed period of time has elapsed is reinforced. FI 60 - first response after 60 seconds producess a reinforcer and then the clock resets for another 60 seconds
Term
fixed interval schedule effects
Definition
post reinforcement pause, followed by a gradual increase in response rates as interval progresses, followed by reinforcement, process starts over. scallops.
Term
variable interval schedules
Definition
first response after a variable period of time produces a reinforcer. VI 10 - first response after a 5s interval, a 15s interval and a 10 s interval
Term
variable interval schedule effects
Definition
slow and steady response rate
Term
thinning intermittent reinforcement
Definition
most commonly gradually increasing the response ratio or the duration of the time interval
Term
ratio strain
Definition
result of abrupt increases in ratio requirements. characteristics include avoidance, aggression and unpredictable pauses in responding.
Term
duration schedules
Definition
reinforcement is contingent of the continuous performance of behavior for a fixed period of time
Term
progressive schedules of reinforcement
Definition
systematically thins each successive reinforcement opportunity independent of the participant's behavior
Term
compound schedules of reinforcement
Definition
combined elements of continuous reinforcement, the 4 intermittent schedules of reinforcement, differential reinforcement of various rates of responding and extinction.
Term
concurrent schedule of reinforcement
Definition
occurs when two or more contingencies of reinforcement operate independently and simultaneously for two or more behaviors
Term
The Matching Law
Definition
rate of responding typically is proportional to the rate of reinforcement received from each choice alternative.
Term
matching law in concurrent interval schedules
Definition
participants typically do not allocate all of their responses exclusively to the richer schedule
Term
matching law in concurrent ratio schedules
Definition
participants are sensitive to the ratio schedules and tend to maximize reinforcement by responding primarily to the ratio that produces the higher rate of reinforcement
Term
multiple schedules of reinforcement
Definition
presents two or more basic schedules of reinforcement in alternating random sequence. A stimulus is correlated with each schedule and is present while that schedule is in effect
Term
chained schedules of reinforcement
Definition
two or mroe basic schedules of reinforcement occuring in a specific order, behavior may be same for all elements or different behaviors may be required for different elements, conditioned reinforcement for first behavior in the chain is the presentation fo the second element and so on.
Term
mixed schedule of reinforcement
Definition
same as multiple schedule, but no discriminative stimuli
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