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Psychology: Definition of Psychology

This guide aims to help you with your psychology research.

Psychology/Psychologist Defined

What is Psychology? The science which studies behavior and mental processes.         

As psychology has grown and changed throughout its history, it has been defined in numerous ways. As early as 400 B.C., the ancient Greeks philosophized about the relationship of personality characteristics to physiological traits. Since then, philosophers have proposed theories to explain human behavior. In the late 1800s the emergence of scientific method gave the study of psychology a new focus.  Read More.

Psychology Classical

A term meaning the study of the soul, coined from the Greek ψυχή (soul) and λόγος (concept) by R. Goclenius (1547–1628). The branch of knowledge it designates has taken on a distinctive form since 1850, but its beginnings can be traced to the ancient Greeks. Aristotle is generally considered the "Father of Psychology," both because he wrote extensive treatises on expressly psychological questions and because he grounded his studies as a natural science on a broad empirical base. Nevertheless, even before Aristotle, the Greek thinkers were speculating on psychological questions. Read More.

History of Psychology Series (1:44:00)

This three-part series looks at the history of psychology from ancient influences to the modern times. It looks at philosophers from different parts of the world who influenced thought on the human condition and human motivation; examines the work of Freud, Jung, and the other psychoanalysts;.... View Video.

What Is Psychology? (02:55)

Positive Psychology (03:58)

Cognitive Psychology (04:48)