Checklist Description

The CHAT (Checklist for Autism in Toddlers) is a diagnostic tool used for the initial assessment of possible autism spectrum disorder in young children, typically aged 18-24 months. It consists of a series of questions and observations that assess the child’s social and communication skills, such as the ability to show interest in objects, engage socially, and participate in imaginative play.

Data Analysis and Usage

Data collected through the CHAT are analyzed to evaluate the likelihood of autism. The analysis involves reviewing the responses from parents and observations of the child to determine if the child shows signs of autism or if further evaluation is needed. The results can be used to guide referrals to specialists and to develop individualized interventions.

Objective

The primary goal of the CHAT is to identify early signs of autism in toddlers to allow for timely intervention and support. The tool helps guide parents and professionals towards accurate diagnosis and can lead to additional diagnostic procedures if necessary.

Scoring

The CHAT is scored based on parental responses and child observations. Each response or observation is related to specific criteria and indicators that may suggest autism. The scores are compiled and compared with reference criteria to determine the likelihood of autism.

Bibliography

Baron-Cohen, S., Allen, J., & Gillberg, C. (1992). Can Autism be Diagnosed in Children Under 3? Journal of Autism and Developmental Disorders, 22(2), 273-288.
Morris, C., & Larkins, L. (2004). Identifying Autism in Toddlers: A Validation Study of the CHAT. Journal of Autism and Developmental Disorders, 34(6), 679-686.
Lord, C., & Pickles, A. (2004). Standardizing Diagnostic Tools for Autism. Journal of Autism and Developmental Disorders, 34(5), 571-580.
Charman, T., & Baron-Cohen, S. (2000). Screening for Autism in 18-Month-Olds: The CHAT and the M-CHAT. Journal of Autism and Developmental Disorders, 30(5), 509-516.
Baron-Cohen, S., & Baldwin, D. (1997). The Use of the CHAT to Identify Early Signs of Autism. Development and Psychopathology, 9(1), 73-84.