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PSYB45H3 (337)
Lecture

Ch 9_

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Department
Psychology
Course
PSYB45H3
Professor
Zachariah Campbell
Semester
Winter

Description
BM chapter 9 - Shaping: used to develop a TB that a person doesnt currently exhibit its defined as the differential reinforcement of successive approximations of a TB until the person exhibits the TB. Differential reinforcement (DR): involves the basic principles of reinforcement & extinction. It occurs when one behavior is reinforced in one particular situation and others are not. As a result the behavior that is reinforced increases and those that dont decrease through extinction. process of DR ( reinforcement of a closer approximation & extinction of a previous approximation) continues until the person finally exhibits the TB. When shaping is used to develop language, the successive approximations or shaping steps include babbling, word sounds, part wordsetc. - to begin shaping you identify an existing behavior that is an st approximation of the TB. This is called the starting behavior or 1 approximation. Skinner used shaping to get lab rats to press the lever in an experimental cham
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