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. 2018 May;48(5):1780-1791.
doi: 10.1007/s10803-017-3440-6.

Identifying Autism with a Brief and Low-Cost Screening Instrument-OERA: Construct Validity, Invariance Testing, and Agreement Between Judges

Cristiane S Paula  1   2 , Graccielle Rodrigues Cunha  3 , Daniela Bordini  3 , Decio Brunoni  4   5 , Ana Claudia Moya  3 , Cleonice Alves Bosa  6 , Jair J Mari  3 , Hugo Cogo-Moreira  3
Affiliations

Identifying Autism with a Brief and Low-Cost Screening Instrument-OERA: Construct Validity, Invariance Testing, and Agreement Between Judges

Cristiane S Paula et al. J Autism Dev Disord. 2018 May.

Abstract

Simple and low-cost observational-tools to detect symptoms of Autism Spectrum Disorder (ASD) are still necessary. The OERA is a new assessment tool to screen children eliciting observable behaviors with no substantial knowledge on ASD required. The sample was 99 children aged 3-10: 76 with ASD and 23 without ASD (11/23 had intellectual disability). The 13 remained items exhibited high interrater agreement and high reliability loaded onto a single latent trait. Such model showed excellent fit indices evaluated via confirmatory factor analysis and no item showed differential function in terms of age/sex/IQ. A cutoff of five points or higher resulted in the highest sensitivity (92.75) and specificity (90.91) percentages. OERA is a brief, stable, low-cost standardized observational-screening to identify ASD children.

Keywords: Autism; Construct validity; Public health; Screening; Sensitivity; Specificity.

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