Describe a variable-interval schedule of reinforcement.
- A schedule of reinforcement is a set of rules that someone follows when delivering reinforcer’s. There are two main types of reinforcements; continuous in which a reinforcer is delivered after the correct behavior and an intermittent schedule whereby a reinforcer is delivered after an undefined period of time and not after each response. There are four types of intermittent reinforcement schedules: Fixed-ratio schedule, fixed-interval schedule, variable-ration schedule and variable-interval schedule. Variable interval schedule is type of reinforcement whereby reinforcement is delivered after a variable time period. The interval can be any number, but must be defined.
A teacher may reinforce a behavior after 2 minutes, then 5 minutes, then 3 minutes, and then 4 minutes. This means that over an interval period of 14 minutes, the teacher reinforced the target behavior every 3.5 minutes (14 total minutes / 4 reinforcements).
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