The word psychology derives from the Greek word psyche, for spirit or soul. The latter part of the word psychology derives from -λογία -logia, which means "study" or "research". The word … 展开

Institutions
In 1920, Édouard Claparède and Pierre Bovet created a new applied psychology organization called the International Congress of Psychotechnics Applied to Vocational Guidance, later called the International Congress … 展开

Personality
Personality psychology is concerned with enduring patterns of behavior, thought, and emotion. Theories of … 展开

Quantitative psychological research lends itself to the statistical testing of hypotheses. Although the field makes abundant use of randomized and controlled experiments in … 展开

The ancient civilizations of Egypt, Greece, China, India, and Persia all engaged in the philosophical study of psychology. In Ancient Egypt the Ebers Papyrus mentioned 展开

Biological
Psychologists generally consider biology the substrate of thought and feeling, and therefore an important … 展开

Psychology encompasses many subfields and includes different approaches to the study of mental processes and behavior.
Psychological testing 展开