1. Achenbach, T. M., McConaughy, S. H., & Howell, C. T. (1987). Child/adolescent behavioral and emotional problems: Implications of cross-informant correlations for situational specificity. Psychological Bulletin, 101, 213–232.
2. Aman, M. G., Lam, K. S. L., & Collier-Crespin, A. (2003). Prevalence and patterns of use of psychoactive medicines among individuals with autism in the Autism Society of Ohio. Journal of Autism and Developmental Disorders, 33, 527–534.
3. American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders. 4th edn. Washington, DC: American Psychiatric Association.
4. Bodfish, J. W., & Lewis, M. H. (2002). Repetitive Behavior in Autism. Paper presented at the International Meeting for Autism Research. (IMFAR), Orlando, FL.
5. Bodfish, J. W., Symons, F. W., & Lewis, M. H. (1999). The Repetitive Behavior Scale. Western Carolina Center Research Reports.