TY  - JOUR
TI  - 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
KW  - Autism Spectrum Conditions
KW  -  Q-CHAT
KW  -  Childhood Screening
UR  - https://discovery.ucl.ac.uk/id/eprint/10004352/
SP  - 1414
VL  - 38
Y1  - 2008/09//
A1  - Allison, Carrie
A1  - Baron-Cohen, Simon
A1  - Wheelwright, Sally
A1  - Charman, Tony
A1  - Richler, Jen
A1  - Pasco, Greg
A1  - Brayne, Carol
N2  - 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.
AV  - public
JF  - Journal of Autism and Developmental Disorders
EP  - 1425
N1  - The original publication is available at www.springerlink.com
SN  - 0162-3257
ID  - discovery10004352
ER  -