psychologists who study human behavior in the workplace are called
Industrial and organizational psychology Industrial and organizational psychology (I/O psychology), which is also known as occupational psychology, organizational psychology, and work and organizational psychology, is an applied discipline within psychology. I/O psychology is the science of human behaviour relating to work and applies psychological theories and principles to organizations and individuals in their places of work as well as the individual's work-life more generally.[1] I/O psychologists are trained in the scientist–practitioner model. They contribute to an organization's success by improving the performance, motivation, job satisfaction, and occupational safety and health as well as the overall health and well-being of its employees. An I/O psychologist conducts research on employee behaviours and attitudes, and how these can be improved through hiring practices, training programs, feedback, and management systems.[2]
Clinical psychology The field is often considered to have begun in 1896 with the opening of the first psychological clinic at the University of Pennsylvania by Lightner Witmer. In the first half of the 20th century, clinical psychology was focused on psychological assessment, with little attention given to treatment. This changed after the 1940s when World War II resulted in the need for a large increase in the number of trained clinicians. Since that time, three main educational models have developed in the USA—the Ph.D. Clinical Science model (heavily focused on research),[4] the Ph.D. science-practitioner model (integrating research and practice), and the Psy.D. practitioner-scholar model (focusing on clinical practice). In the UK the Clinical Psychology Doctorate falls between the latter two of these models, whilst in much of mainland Europe the training is at masters level and predominantly psychotherapeutic. Clinical psychologists are expert in providing psychotherapy, and generally train within four primary theoretical orientations—psychodynamic, humanistic, behavior therapy/ cognitive behavioral, and systems or family therapy.