The use of psychological tests are often seen in a therapeutic or diagnostic setting. Through extensive research, a multitude of psychological assessment scales have been developed to objectively and precisely measure various aspects of psychological functioning and personality characteristics. Your psychologist or therapist may request that you participate in psychological testing in order to help him/her better understand your situation or to answer a diagnostic question. Psychological testing is only performed by psychologists who are trained in the administration, scoring, and interpretation of the testing. Testing can be used to assess areas such as intelligence, memory, personality traits, motivational problems, neuropsychological problems, or relationship conflicts.