A psychologist evaluates, diagnoses, treats, and studies behavior and mental processes. Some psychologists, such as clinical and counseling psychologists, provide mental health care, and some psychologists, such as social or organizational psychologists conduct research, usually in university or other academic settings. Psychologists are often confused with psychiatrists: A psychologist has a graduate degree (usually a PhD or MA), whereas a psychiatrist has an MD (or, by continuing their study, a PHD). Clinical, counseling, and school psychologists who work with patients in a variety of therapeutic contexts (contrast with psychiatrists, who are physician specialists). Organizational psychologists who apply psychological research, theories and techniques to "real-world" problems, questions and issues in business, industry, or government. Academics conducting psychological research or teaching psychology in a college or university; 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 "research-oriented". The common terms used to describe this central division in psychology are "scientists" or "scholars" (those who conduct research) and "practitioners" or "professionals" (those who apply psychological knowledge). The training models endorsed by the APA require that applied psychologists be trained as both researchers and practitioners, and that they possess advanced degrees. Most typically, people encounter psychologists and think of the discipline as involving the work of clinical psychologists or counselling psychologists. While counseling and psychotherapy are common activities for psychologists, these applied fields are just one branch in the larger domain of psychology. Research and teaching comprise a major role among psychologists. Technological advances in the future may increase the usage of computerized testing and assessment services in order to do some of the jobs of psychologists, including recognizing mental disorders.
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