Allison, Carrie;
Baron-Cohen, Simon;
Wheelwright, Sally;
Charman, Tony;
Richler, Jen;
Pasco, Greg;
Brayne, Carol;
(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.
Journal of Autism and Developmental Disorders
, 38
pp. 1414-1425.
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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 QCHAT 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 QCHAT 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.
| Type: | Article |
|---|---|
| Title: | 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 |
| Open access status: | An open access version is available from UCL Discovery |
| Language: | English |
| Additional information: | The original publication is available at www.springerlink.com |
| Keywords: | Autism Spectrum Conditions, Q-CHAT, Childhood Screening |
| UCL classification: | UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10004352 |
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