PSYC 1010 Lecture Notes - Lecture 7: Social Influence, Tantrum, Reinforcement

• School: York University
• Department: Psychology
• Course: PSYC 1010
• Professor: Dr. Rebecca Jubis

Document Summary

Fixed ratio: the number of times that a response is needed in order to obtain a reward. Ex: rat presses a bar for food every 5x gets food (operates on fr-5) Variable ratio: reward is unpredictable (sr+ is given for an average number of responses. The number of responses needed for reinforcement is unpredictable. Not every 10th person is buying a policy, on average every 10 people will buy an insurance policy. Found in gambling one more game, it might be it . Interval schedule: where reinforcement is delivered for the 1st response that occurs after a given time period has elapsed. Fixed interval schedule: reinforce the first response after a set or fixed time interval. Fi- 2mins, rat receives a food pellet every 2 minutes after behaviour of pushing the bar. Rate of responding increases as the response time approaches.