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Related Experiment Video

Updated: May 20, 2026

A Modified Trier Social Stress Test for Vulnerable Mexican American Adolescents

A Modified Trier Social Stress Test for Vulnerable Mexican American Adolescents

Published on: July 10, 2017

M-CHAT Mexican Version Validity and Reliability and Some Cultural Considerations.

Lilia Albores-Gallo¹, Ofelia Roldán-Ceballos, Gabriela Villarreal-Valdes

¹Research Division, Hospital Psiquiátrico Infantil "Dr. Juan N. Navarro," Secretaría de Salud, Mexico.

|July 20, 2012

Summary

This study validated the Modified Checklist for Autism in Toddlers (M-CHAT) in Mexico. The Mexican version shows good psychometric properties for screening Autism Spectrum Disorders (ASD) but highlights cultural differences in item responses.

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Area of Science:

Child Psychology
Developmental Pediatrics
Psychometrics

Background:

The Modified Checklist for Autism in Toddlers (M-CHAT) is a screening tool for early identification of Autism Spectrum Disorders (ASD).
Validation of the M-CHAT in diverse cultural contexts, such as the Mexican population, is essential for accurate ASD screening.
Previous studies indicated the need for culturally adapted versions of developmental screening tools.

Purpose of the Study:

To validate a Spanish version of the M-CHAT for the Mexican population.
To assess the psychometric properties of the Mexican M-CHAT version in identifying toddlers with ASD.
To explore potential cultural variations in M-CHAT item responses.

Main Methods:

A cross-sectional study involving 456 children aged 3-5 years, including typically developing (TD) children and those with ASD.
Parents completed the Mexican M-CHAT version and the Child Behavior Checklist for 1.5-5 years (CBCL/1.5-5).
Psychometric properties, including internal consistency and correlations with other measures (CBCL/1.5-5, ADI-R), were analyzed.

Main Results:

The Mexican M-CHAT version demonstrated good internal consistency (total score: .76; critical items: .70).
The ASD group had significantly higher mean scores for failed M-CHAT items compared to the TD group.
Correlations with relevant CBCL/1.5-5 subscales and ADI-R dimensions supported the M-CHAT's validity for ASD screening.

Conclusions:

The Mexican M-CHAT version is a reliable tool for screening ASD in toddlers within the Mexican population.
While psychometrically sound, the study identified cultural differences in item responses, impacting international comparability of M-CHAT results.
The findings support the use of culturally adapted M-CHAT versions for effective early ASD detection in primary care and specialized clinics.