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Related Experiment Video

Updated: Jun 5, 2025

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers

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Published on: March 14, 2018

Autism Screening Using the Parent's Observation of Social Interactions in a Large Integrated Healthcare System.

Kek Khee Loo¹, Su-Jau Yang², Jerry C Cheng¹

¹Department of Pediatrics, Kaiser Permanente Los Angeles Medical Center, Los Angeles, CA.

The Journal of Pediatrics

|December 14, 2024

Summary

The Parent's Observation of Social Interactions (POSI) tool shows good accuracy for autism screening in primary care. This autism screening method is effective for identifying children who may need further evaluation.

Keywords:

Developmental screening early childhood early intervention pediatric care sensitivity test reliability validity

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Published on: October 4, 2015

Area of Science:

Pediatric Healthcare
Developmental Pediatrics
Autism Spectrum Disorder Research

Background:

Early autism spectrum disorder (ASD) detection is crucial for timely intervention.
Universal screening in primary care settings can improve identification rates.
The Parent's Observation of Social Interactions (POSI) is a tool designed for early ASD screening.

Purpose of the Study:

To evaluate the accuracy of the POSI tool for universal autism screening.
To assess the sensitivity and specificity of POSI in a large healthcare network.
To determine the utility of POSI in identifying children with ASD at well-child visits.

Main Methods:

Retrospective analysis of electronic health records from children screened with POSI.
Screening conducted at 18- and 24-month well-child care visits in 2022.
ASD diagnoses were analyzed one year later to calculate accuracy metrics (sensitivity, specificity, LR+/LR-).

Main Results:

At 18 months, POSI sensitivity was 77.9% and specificity was 76.1%.
At 24 months, POSI sensitivity was 76.5% and specificity was 81.4%.
Positive screens were 3.3 to 4.2 times more likely in children diagnosed with ASD.

Conclusions:

The POSI screen demonstrates adequate sensitivity and specificity for autism screening in primary care.
Systematic deployment of POSI at 18- and 24-month visits is effective for identifying potential ASD cases.
POSI results can aid in differentiating children with and without ASD diagnoses.