Early Indicators of Autism in Infants: Development of the IMES Screening Tool

Area of Science:

• Developmental Psychology
• Pediatric Neurology
• Autism Spectrum Disorder Research

Background:

• Early identification of autism spectrum disorder (ASD) is crucial for intervention effectiveness.
• Existing screening tools may benefit from enhanced psychometric properties for infant populations.
• Assessing infant interaction quality offers a novel approach to early ASD detection.

Purpose of the Study:

• To develop and validate the Infant, Motor, and Engagement Scale (IMES) for early ASD screening.
• To evaluate the IMES's psychometric properties, including reliability and validity.
• To determine the IMES's ability to differentiate between infants with and without ASD.

Main Methods:

• Retrospective analysis of home videos from 15 male infants (7 diagnosed with ASD).
• Application of the IMES to assess infant interaction with people and objects.
• Statistical examination of interrater reliability (Cohen's Kappa) and internal consistency (Cronbach's alpha).

Main Results:

• Preliminary data indicate acceptable interrater reliability and internal consistency for the IMES.
• Content validity was supported through expert review.
• The IMES demonstrated potential in discriminating between infants later diagnosed with ASD and typically developing infants.

Conclusions:

• The IMES shows preliminary validity and reliability for identifying infants at risk for ASD between 6 and 9 months of age.
• Further research is warranted to confirm the IMES's efficacy in diverse populations.
• The IMES has the potential to significantly impact child and family outcomes through early identification and intervention.