Are the Majority of Children With Autism Mentally Retarded? : A Systematic Evaluation of the Data

  title={Are the Majority of Children With Autism Mentally Retarded? : A Systematic Evaluation of the Data},
  author={Meredyth Goldberg Edelson},
  journal={Focus on Autism and Other Developmental Disabilities},
  • M. G. Edelson
  • Published 1 May 2006
  • Psychology
  • Focus on Autism and Other Developmental Disabilities
There are frequent claims in the literature that a majority of children With autism are mentally retarded (MR). The present study examined the evidence used as the basis for these claims, revieWing 215 articles published betWeen 1937 and 2003. Results indicated 74% of the claims came from nonempirical sources, 53% of Which never traced back to empirical data. Most empirical evidence for the claims Was published 25 to 45 years ago and Was often obtained utilizing developmental or adaptive scales… 

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