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Psychometric Properties of a Newly Developed Autism Screener: Accuracy and Predictive Factors in a Spanish-speaking Sample

Abstract

Few Level-2 screening instruments for autism cover a broad age range and include direct interactions with caregivers, and fewer have proven utility in Spanish-speaking populations. The study explored the psychometric properties of a newly developed tool in a large sample from South America (n = 295). The BOSA’s sensitivity ranged from 0.46 to 1.00 and specificity from 0.44 to 0.93. Based on these findings, the BOSA demonstrates clinical utility to be used as a Level-2 screener in this population. Like other autism screening instruments, the Emotional and Behavioral Problems (EBPs) and differences across Autism Diagnostic Observation Schedule-Second Edition (ADOS-2) modules predicted false positive results on the screener. Potential considerations and implications are discussed.

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