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Unformatted text preview: -Any event that strengthens the behavior it follows o Positive reinforcement – adds a desirable stimulus (getting a paycheck) o Negative reinforcement – removes an aversive stimulus (fastening seatbelt to turn off beeping) Ratio schedules Fixed-ratio schedule: reinforces a response only after a specified number of responses Variable-ratio schedule: reinforces a response after an unpredictable number of responses. Hard to extinguish because of unpredictability (gambling, fishing) Interval Schedules Fixed-interval schedule: reinforces a response only after a specified time has elapsed (preparing for an exam only when it draws close) Variable – interval response: reinforces a response at unpredictable time intervals. Produces slow steady responding (pop quiz)...
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This document was uploaded on 10/25/2011 for the course PSY 105 at DePaul.
- Spring '09