There are training and certification programs in assessment, test administration, and interpretation available; and a mental health professional with training is qualified to perform psychological testing and evaluation. The health professional, usually a psychologist, who administers the tests and conducts the interview may or may not be the treating therapist. Once a diagnosis is made, the testing clinician may refer the client to another specialist for treatment. In addition to checking credentials, it is important in all cases to find a mental health professional with whom you and your child, if involved, feel comfortable working. Assessment should arrive at treatment plans that are personalized to the needs of the individual.