Watson rejected introspection and redefined psychology as the study of observable behavior.
The notion of introspection—that one may approach consciousness scientifically or use one's mind to contemplate one's own mind—was rejected by John B. Watson. The observable facts of behaviour were the sole valid data for scientific study.
Examining one's own conscious thoughts and feelings is known as introspection. While introspection in psychology refers to the observation of one's mental state, it may also relate to the soul's investigation in a spiritual setting.
The behaviourists held that psychology ought to be the scientific study of discernible behaviour. The first half of the 20th century saw the heyday of behaviourism, which greatly enhanced our knowledge of several crucial learning processes.
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