Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2008 Sep;38(8):1414-25.
doi: 10.1007/s10803-007-0509-7. Epub 2008 Feb 1.

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

Affiliations

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

Carrie Allison et al. J Autism Dev Disord. .

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.

Similar articles

See all similar articles

Cited by 40 articles

See all "Cited by" articles

References

    1. Arch Gen Psychiatry. 2003 May;60(5):524-30 - PubMed
    1. J Child Psychol Psychiatry. 2006 Feb;47(2):167-75 - PubMed
    1. J Autism Dev Disord. 2000 Dec;30(6):607-12 - PubMed
    1. Am J Psychiatry. 2005 Jun;162(6):1133-41 - PubMed
    1. Pediatrics. 2001 Nov;108(5):1155-61 - PubMed

Publication types

LinkOut - more resources

Feedback