Psychological assessment is a process of testing that uses a combination of techniques to help arrive at some hypotheses about a person and their behavior, personality and capabilities. Psychological assessment is also referred to as psychological testing, or performing a psychological battery on a person. Psychological testing is nearly always performed by a licensed psychologist, or a psychology trainee (such as an intern). Psychologists are the only profession that is expertly trained to perform and interpret psychological tests.

Psychological assessment should never be performed in a vacuum. A part of a thorough assessment of an individual is that they also undergo a full medical examination, to rule out the possibilities of a medical, disease or organic cause for the individual’s symptoms. It’s often helpful to have this done first, before psychological testing (as it may make psychological testing moot).