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Autism Spectrum Disorder

Autism Spectrum Disorder

Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
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Participant Modeling
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Related Experiment Video

Updated: Jul 16, 2025

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

A Multi-Trait Multi-Method Examination of Psychometric Instrument Performance in Autism Spectrum Disorder.

Michael A Levine¹, Huan Chen², Ericka L Wodka¹

¹Kennedy Krieger Institute, Baltimore, MD, USA.

|September 11, 2023

Summary

This summary is machine-generated.

Parent reports in Autism Spectrum Disorder (ASD) research may introduce bias. This study found rater-based measures explained more score variance than performance-based measures, impacting trait precision.

Keywords:

MTMM autism autism symptom severity performance instrument rater instrument

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Published on: October 4, 2015

Area of Science:

Neurodevelopmental Disorders
Psychometrics
Autism Spectrum Disorder Research

Background:

Rater-based measures (e.g., parent reports) in Autism Spectrum Disorder (ASD) research may exhibit significant across-trait covariance.
This covariance can reduce measurement precision for specific traits and potentially explain discrepancies between parent reports and performance-based assessments.

Purpose of the Study:

To investigate method-associated bias in Autism Spectrum Disorder (ASD) samples.
To quantify the contribution of measurement methodology to score variance in both rater-based and performance-based assessments.

Main Methods:

Employed a multi-trait, multi-method research design.
Examined performance and rater-instrument pairs for attention, inhibition, working memory, motor coordination, and core ASD features in an ASD sample (n=83).

Main Results:

Rater-based scores demonstrated substantial methodology bias, accounting for 57% of score variance.
Performance-based scores exhibited considerably weaker methodology bias, explaining 22% of score variance.

Conclusions:

The significant influence of methodology on rater-based scores validates concerns about their use in ASD research.
Findings underscore the need to consider method bias when interpreting rater-based data in ASD trait assessment.