Core symptoms &: observable behaviors in a child with Autistic Spectrum Disorder are qualitative impairments in reciprocal social interaction & social communication + stereotyped, repetitive movements &/or narrow, restricted areas of interest. Behaviors are compared to norms for the child's chronological & developmental ages. See firstsigns.org for the M-CHAT, age 16 mos.-4 yrs. & autismspeaks.org for specifics.
Answered 11/7/2014
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