Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff 

Originally a philosophy, now recognized as study of the mind represented by various disciplines and research including experimental, biological and cognitive. Psychological research utilizes observation, experimentation, analysis and testing to factors in human and animal behavior. Psychological knowledge is employed to understand and treat dysfunction and to understand behavior more fully. 2. The assumed collection of behavioral traits characterizing an individual or group.

PSYCHOLOGY: "Psychology is the study of the mind and behavior."

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