Psychologist is an academic, occupational or professional title used by individuals who are either: Social scientists conducting psychological research or teaching psychology in a college or university; employed by the government in psychology positions; professionals who apply psychological research, theories and techniques to "real-world" problems, questions and issues, most typically in health and mental health care services, or in business and industry.There are many different types of psychologists, as is reflected by the 56 different divisions of the American Psychological Association (APA). Psychologists are generally described as being either "applied" or