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Skinner summarized this relationship by saying that a discriminative stimulus (e.g. light or sound) sets the occasion for the reinforcement (food) of the operant (lever-press). This three-term contingency (stimulus-response-reinforcer) is one of Skinner's most important concepts, and sets his theory apart from theories that use only pair-wise ...
The experimental analysis of behavior is a science that studies the behavior of individuals across a variety of species. A key early scientist was B. F. Skinner who discovered operant behavior, reinforcers, secondary reinforcers, contingencies of reinforcement, stimulus control, shaping, intermittent schedules, discrimination, and generalization.
The three-term contingency (also known as the ABC contingency) is a psychological model describing operant conditioning in three terms consisting of a behavior, its consequence, and the environmental context, as applied in contingency management. The three-term contingency was first defined by B. F. Skinner in the early 1950s. [1]
Skinner's basic theory was advanced in recognizing two different types of conditioning, but he didn't recognize their interrelatedness, or the importance of classical conditioning, both very central for explaining human behavior and human nature. Staats' basic theory specifies the two types of conditioning and the principles of their relationship.
Shaping sometimes fails. An oft-cited example is an attempt by Marian and Keller Breland (students of B.F. Skinner) to shape a pig and a raccoon to deposit a coin in a piggy bank, using food as the reinforcer. Instead of learning to deposit the coin, the pig began to root it into the ground, and the raccoon "washed" and rubbed the coins together.
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Skinner's behavioral approach and Kantor's interbehavioral approach were adopted in Bijou and Baer's model. They created a three-stage model of development (e.g., basic, foundational, and societal). Bijou and Baer looked at these socially determined stages, as opposed to organizing behavior into change points or cusps (behavioral cusp). [4]
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