Part 2: A psychologist is a highly trained mental health professional who specializes in understanding how people think, feel, behave, and relate — and how those patterns are shaped by development, trauma, learning, and the nervous system. Psychologists are trained in two main areas: assessment/diagnosis, and psychotherapy. One of their unique roles is psychological testing and evaluation. This includes assessments for things like: \t•\tADHD and learning differences \t•\tAutism spectrum \t•\tTra