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Cicchetti, Domenic V.; Lord, Catherine; Koenig, Kathy; Klin, Ami; Volkmar, Fred R. – Journal of Autism and Developmental Disorders, 2014
In an earlier investigation, the authors assessed the reliability of the ADI-R when multiple clinicians evaluated a single case, here a female 3¬†year old toddler suspected of having an autism spectrum disorder (Cicchetti et al. in "J Autism Dev Disord" 38:764-770, 2008). Applying the clinical criteria of Cicchetti and Sparrow ("Am J…
Descriptors: Autism, Females, Toddlers, Pervasive Developmental Disorders
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Cicchetti, Domenic V.; Koenig, Kathy; Klin, Ami; Volkmar, Fred R.; Paul, Rhea; Sparrow, Sara – Journal of Autism and Developmental Disorders, 2011
The objectives of this report are: (a) to trace the theoretical roots of the concept clinical significance that derives from Bayesian thinking, Marginal Utility/Diminishing Returns in Economics, and the "just noticeable difference", in Psychophysics. These concepts then translated into: Effect Size (ES), strength of agreement, clinical…
Descriptors: Autism, Intelligence Tests, Statistical Significance, Effect Size
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Cicchetti, Domenic V.; Lord, Catherine; Koenig, Kathy; Klin, Ami; Volkmar, Fred R. – Journal of Autism and Developmental Disorders, 2008
The authors assessed the reliability of the Autism Diagnostic Interview (ADI-R). Seven Clinical Examiners evaluated a three and one half year old female toddler suspected of being on the Autism Spectrum. Examiners showed agreement levels of 94-96% across all items, with weighted kappa (K[subscript w]) between 0.80 and 0.88. They were in 100%…
Descriptors: Autism, Interrater Reliability, Measures (Individuals), Clinical Diagnosis