“…However, neuropsychological testing is costly and time consuming, and its use may be impacted by managed-care concerns (Piotrowski, 1999). The decision to carry out neuropsychological assessment, the choice of domains to evaluate, and the selection of instruments should be done thoughtfully, emphasizing those with most relevance for educational and treatment plans (Groth-Mamat, 1999;Klin & Shepard, 1994;Ozonoff, Dawson, & McPartland, 2002), Space issues preclude a comprehensive review of all domains of neuropsychology; in the following we discuss three areas of particular interest with this population, Neuropsychological assessment is not usually useful (or even possible) with nonverbal or mentally retarded children with ASD. It may be warranted for higher functioning individuals when there are unexplained discrepancies or weaknesses in school performance, behavioral difficulties that appear to stem from undiagnosed learning disorders, and suspected organic problems.…”