John B. Watson
Overview
John Broadus Watson was an American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 psychologist
Psychology
Psychology is the study of the mind and behavior. Its immediate goal is to understand individuals and groups by both establishing general principles and researching specific cases. For many, the ultimate goal of psychology is to benefit society...

 who established the psychological school of behaviorism
Behaviorism
Behaviorism , also called the learning perspective , is a philosophy of psychology based on the proposition that all things that organisms do—including acting, thinking, and feeling—can and should be regarded as behaviors, and that psychological disorders are best treated by altering behavior...

. Watson promoted a change in psychology through his address Psychology as the Behaviorist Views it which was given at Columbia University in 1913. Through his behaviorist appoarch, Watson conducted research on animal behavior, child rearing, and advertising.
 
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