Psychological assessments are offered as a stand-alone service or in preparation for individual and/or group therapy. A professional referral is not required. Medical rehabilitation assessments are also available upon referral from a physician, lawyer, assessment center and/or rehabilitation center or insurance company. A combination of techniques are used to arrive at a clinical diagnosis about behavior, personality and capabilities. A thorough assessment typically involves a review of any past treatments, one or two lengthy sessions where an interview is conducted and psychological tests may be administered, and then a final meeting where results are shared. A formal report can be made available summarizing the findings for the assessment and providing recommendations.