1. American Psychiatric Association. Diagnostic and statistical manual of mental disorders(2013). (5th ed.). Washington, DC: Author.##
2. Matson J. L, Shoemaker M. Intellectual disability and its relationship to autism spectrum disorders. Research in Developmental Disabilities(2009), 30, 1107–1114.##
3. Matson J. L, Wilkins J. A critical review of assessment targets and methods for social skills excesses and deficits for children with autism spectrumdisorders. Research in Autism Spectrum Disorders, (2007) ,1, 28–37.##
4.Rodger S, Braithwaite M, Keen D. Early intervention for children with autism: Parental priorities. Australian Journal of Early Childhood, (2004),29, 34–41.##
5. Solish A, Perry A. Parents’ involvement in their children’s behavioral intervention programs: Parent and therapist perspectives. Research in AutismSpectrum Disorders, (2008) ,2, 728–738.##
6. Spann S. J, Kohler F. W Soenksen D. Examining parent’s involvement in and perceptions of special education services: An interview with families in aparent support group. Focus on Autism and Other Developmental Disabilities, (2003) ,18, 228–237.##
7. Whitaker P. Provision for youngsters with autistic spectrum disorders in mainstream schools: What parents say—and what parents want. British Journal ofSpecial Education, (2007) ,34, 170–178.##
8. Goodlin-Jones, B. L, Tang, K, Liu, J, Anders T. F. Sleep patterns in preschool-age children with autism, developmental delay, and typical development.Journal of the American Academy of Child and Adolescent Psychiatry, 4(2008),7, 930–938.##
9. Gordon, J, Diller, A, Bausman, M, Velicer, W, Norman, G, Cautela, J. The development of a stress survey schedule for persons with autism and other developmental disabilities. Journal of Autism and Developmental Disorders, (2001),31, 207–217.##
10. Seale J, Nind M. (Eds.). Understanding and promoting access for people with learning difficulties. (2009). London: Routledge.##
11. Keenan A. Pituch &Vanessa A. GreenParent reported treatment priorities for children with autism spectrum disorders, Research in Autism Spectrum Disorders.(2011), 5 , 135–143##
13. Mosier, Charles IA critical examination of the concepts of face validity, Educational and Psychological Measurement, ,(1947), 7, 191-205##
14. Polit DF, Beck CT, Owen SV..Is the CVI an acceptable indicator of content validity? Appraisal and recommendations. Research in nursing & health, (2007(,30, 459-67.##
15. Prince MI, James OF, Holland NP, Jones DE. Validation of a fatigue impact score in primary biliary cirrhosis: towards a standard for clinical and trial use. Journal of hepatology, (2000),32,368-73.##