Experimental psychologists attempt to understand the fundamental causes of behavior in people and animals and are usually found in a laboratory doing experiments. Industrial psychologists try to apply psychological principles in industries and organizations, primarily in selecting and placing employees, training personnel, and generally relieving problems associated with any organization of people. Human factors psychologists work with engineers to design and modify equipment to be user friendly. Educational and school psychologists apply psychology principles to improve the teaching-learning process. Social psychologists study how people influence each other.
Psychometric psychologists develop various types of tests, including IQ tests and personality tests.
Developmental psychologists study the development of living organisms from the moment of conception until death. Actually, psychology is a very broad field that includes many different subfields of specialization. The American Psychological Association, the professional organization of psychologists, lists 51 individual subdivisions of psychology. The APA now represents clinicians and counselors, the practitioners of psychology, more than the scientists. The goal of all these psychologists is to advance or to apply the scientific understanding of behavior.