Psychologists in Private Practice Psychologists' evaluations are used to diagnose mental health problems and provide an in-depth knowledge of the patient's current functioning. They usually consist of a clinical interview with a psychologist followed by a thorough document review. Assessment psychologists are in high demand in clinical environments. For example, https://wwwiampsychiatryuk00582.madmouseblog.com/10680732/10-undisputed-reasons-people-hate-private-psychiatric-assessment