At that time, psychological behaviorism was the largest force in the United States. Although such research violated morality, the psychologists at that time did not have the awareness we have now, and cannot be attributed entirely to them. Just like Skinner of the new behaviorism school said that behavior is a process of trial and error, so is the era, developed in a process of continuous trial and error (just like Watson, the founder of behaviorism, was eventually blamed by everyone , and finally faded out of research in the field of psychology), otherwise maybe you and I are twins who were used for experiments.
The contribution made by behaviorism is not small. Don't you use behaviorism to train your pets every day?
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