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Chlebowski, Colby; Green, James A.; Barton, Marianne L.; Fein, Deborah – Journal of Autism and Developmental Disorders, 2010
This study investigated the childhood autism rating scale (CARS) as a tool for ASD diagnoses for 2-year-old (n = 376) and 4-year-old (n = 230) children referred for possible autism. The cut-off score to distinguish autistic disorder from PDD-NOS was 32 in the 2-year-old sample (consistent with Lord in "J Child Psychol Psychiatry Allied…
Descriptors: Autism, Rating Scales, Young Children, Evaluation Methods
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Liss, Miriam; Fein, Deborah; Bullard, Sarah; Robins, Diana – Journal of Autism and Developmental Disorders, 2000
A study involving 18 individuals with pervasive developmental disorders (PDD) (ages 9-21) and 67 controls found total score on the Biber Cognitive Estimation Test for both individuals with PDD and controls progressed consistently with mental age, development being the most dramatic around the mental age of 8 years. (Contains references.)…
Descriptors: Adolescents, Age Differences, Children, Cognitive Ability