Nature of the Work Psychologists study human behavior and the mental processes related to that behavior. Research psychologists investigate the physical, cognitive, emotional, or social aspects of human behavior. Psychologists in applied fields provide mental health services in hospitals, clinics, schools, or private settings. Like other social scientists, psychologists formulate hypotheses and collect data to test their validity.
Research methods depend on the topic under study.
Psychologists may gather information through controlled laboratory experiments, as well as through personality, performance, aptitude, and intelligence tests. Other methods include observation, interviews, questionnaires, clinical studies, and surveys. Computers are widely used to record and analyze this information. Psychologists apply their knowledge and techniques to a wide range of endeavors including human services, management, education, law, and sports. In addition to a variety of work settings, psychologists specialize in many different areas.