Programs that offer any of a variety of therapeutic interventions, which may be used singly or in combination, to address the range of social, language, sensory and behavioral difficulties experienced by children and adults with autism and related disorders. Because of the spectrum nature of autism and the many behavior combinations that can occur, treatment approaches must be tailored to meet the individual needs of each person. (Adapted from AIRS LR-0450) (For autism and developmental evaluations, see also Developmental Assessment)