The Rescorla-Wagner Model

In this video I explain the basic idea behind the Rescorla-Wagner model or contingency model of classical conditioning proposed by Robert Rescorla and Allan Wagner. This model suggests that the reason Pavlov’s dogs associated the bell (rather than some other stimulus) with food was that it was salient and served as a reliable predictor of food. Don’t forget to subscribe …

Scared Infants and Sick Rats: Aversive Conditioning

In this video I explain two examples of aversive conditioning; John Watson’s “Little Albert” study pairing presentation of a rat with a loud noise, and John Garcia and Robert Koelling’s work on learned taste aversions in rats. Taste aversions demonstrate our biological preparedness for some learning, which allows us to learn certain types of associations more easily than others. Don’t …

Extinction, Generalization, and Discrimination

In this video I explain some other terminology for describing aspects of classical conditioning including acquisition, extinction, spontaneous recovery, stimulus generalization, stimulus discrimination, and second-order or higher-order conditioning. Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me …

Types of Test Designs

In designing an intelligence assessment, I may want to know the level of difficulty that someone is capable of solving. In this case, I would probably look at whether a person is able to solve a particularly difficult puzzle or not. This would be considered a power test. In this context power refers to how well a measurement can differentiate …