Psychometric Evaluation of Two Adult Autism Screening Tools in Brazil

IF 5.6 2区 医学 Q1 BEHAVIORAL SCIENCES
Autism Research Pub Date : 2025-07-21 DOI:10.1002/aur.70089
Louise do Nascimento Marques, Christopher Murray, Lucas Fortaleza, J. Landeira-Fernandez, Luis Anunciação
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Abstract

Despite increasing rates of autism spectrum disorder (ASD) in many countries, substantial evidence suggests persistent underdiagnosis of ASD in many low and middle-income countries, such as Brazil. Underdiagnosis or misdiagnosis may be particularly prevalent among women who often present subtler social and behavioral characteristics, engage in camouflaging strategies, and exhibit different symptom expressions compared to men. This study evaluates two new instruments to improve screening for ASD among adults in Brazil: the Screening for Autism in Adults (SfA-A) and the Screening for Autism in Females (SfA-F). A sample of 3302 Brazilian adults (mean age = 37.55 ± 11.34 years) completed the SfA-A, while 7738 Brazilian adult women (mean age = 38.77 ± 10.28 years) completed the SfA-F. Exploratory Structural Equation Modeling was conducted. Reliability was assessed using Cronbach's alpha, McDonald's omega, and test–retest. Criterion validity was determined by the AQ-10 and two autism-related questions. Norms were established based on percentiles. Exploratory and confirmatory factor analyses indicated that the SfA-A and SfA-F exhibited strong model fit, high internal consistency (α > 0.8), and initial evidence of criterion-related validity. The SfA-A and SfA-F were developed to address critical gaps in ASD screening among adults in Brazil. These tools hold promise for identifying ASD symptoms and can be used to initiate formal ASD evaluation.

Abstract Image

巴西两种成人自闭症筛查工具的心理测量评估。
尽管自闭症谱系障碍(ASD)在许多国家的发病率不断上升,但大量证据表明,在许多低收入和中等收入国家,如巴西,ASD的诊断一直存在不足。诊断不足或误诊可能在女性中特别普遍,她们通常表现出更微妙的社会和行为特征,参与伪装策略,并表现出与男性不同的症状表达。本研究评估了两种改善巴西成人自闭症筛查的新工具:成人自闭症筛查(SfA-A)和女性自闭症筛查(SfA-F)。3302名巴西成年人(平均年龄= 37.55±11.34岁)完成了SfA-A, 7738名巴西成年女性(平均年龄= 38.77±10.28岁)完成了SfA-F。进行探索性结构方程建模。采用Cronbach’s alpha、McDonald’s omega和重测法评估信度。标准效度由AQ-10和两个自闭症相关问题决定。规范是根据百分位数建立的。探索性和验证性因子分析表明,SfA-A和SfA-F具有较强的模型拟合性、较高的内部一致性(α > 0.8)和初步的标准相关效度证据。开发SfA-A和SfA-F是为了解决巴西成人ASD筛查中的关键差距。这些工具有望识别ASD症状,并可用于启动正式的ASD评估。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Autism Research
Autism Research 医学-行为科学
CiteScore
8.00
自引率
8.50%
发文量
187
审稿时长
>12 weeks
期刊介绍: AUTISM RESEARCH will cover the developmental disorders known as Pervasive Developmental Disorders (or autism spectrum disorders – ASDs). The Journal focuses on basic genetic, neurobiological and psychological mechanisms and how these influence developmental processes in ASDs.
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