A psychological evaluation is an examination into a person's mental health by a mental health professional such as a psychologist. Vala Mal Doran had to undergo an evaluation of her mental state and tried to prepare for the examination by researching it on the internet. (SG1: "Morpheus") Lt. Tamara Johansen was asked to perform evaluations on all the crew after she became concerned with Sgt. Spencer's behavior. (SGU: "Life")