Diagnostic Criteria for Autistic Disorder:
According to the DSM-IV-TR an individual must present with:
A) pattern of six symptoms distributed across three categories, with at least two symptoms from Category One. The categories are as follows:
A) pattern of six symptoms distributed across three categories, with at least two symptoms from Category One. The categories are as follows:
Category One
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Category Two
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Category Three
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B) Delays or abnormal functioning in at least one of the following areas, with onset prior to age three.
1) Social Interaction.
2) Languages as used in social communication.
3) Symbolic or imaginative play.
References
American Psychiatric Association. (2000). Chapter 1. Disorders usually first diagnosed in infancy, childhood, or adolescence. In Diagnostic and statistical manual of mental disorders (4th ed., text rev.). Retrieved from http://0-dsm.psychiatryonline.org.darius.uleth.ca/content.aspx?bookid=22§ionid=1888402#7546