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01-09-2008 | Original Paper | Uitgave 8/2008

The Q-CHAT (Quantitative CHecklist for Autism in Toddlers): A Normally Distributed Quantitative Measure of Autistic Traits at 18–24 Months of Age: Preliminary Report

Tijdschrift:: Journal of Autism and Developmental Disorders > Uitgave 8/2008

Auteurs:: Carrie Allison, Simon Baron-Cohen, Sally Wheelwright, Tony Charman, Jennifer Richler, Greg Pasco, Carol Brayne

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Abstract

We report a major revision of the CHecklist for Autism in Toddlers (CHAT). This quantitative CHAT (Q-CHAT) contains 25 items, scored on a 5 point scale (0–4). The Q-CHAT was completed by parents of n = 779 unselected toddlers (mean age 21 months) and n = 160 toddlers and preschoolers (mean age 44 months) with an Autism Spectrum Condition (ASC). The ASC group (mean (SD) = 51.8 (14.3)) scored higher on the Q-CHAT than controls (26.7 (7.8)). Boys in the control group (27.5 (7.8)) scored higher than girls (25.8 (7.7)). The intraclass correlation for test-retest reliability was 0.82 (n = 330). The distribution in the control group was close to normal. Full examination of the clinical validity of the Q-CHAT and test properties is underway.

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Titel: The Q-CHAT (Quantitative CHecklist for Autism in Toddlers): A Normally Distributed Quantitative Measure of Autistic Traits at 18–24 Months of Age: Preliminary Report
Auteurs:: Carrie Allison
Simon Baron-Cohen
Sally Wheelwright
Tony Charman
Jennifer Richler
Greg Pasco
Carol Brayne
Publicatiedatum: 01-09-2008
DOI: https://doi.org/10.1007/s10803-007-0509-7
Uitgeverij: Springer US
Tijdschrift: Journal of Autism and Developmental Disorders
Uitgave 8/2008
Print ISSN: 0162-3257
Elektronisch ISSN: 1573-3432

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