Psychometric properties of the Beliefs About Adults with ID Scale in American physicians: Application of classical test and Rasch measurement theories

IF 2.1 2区医学 Q1 EDUCATION, SPECIAL

Journal of Intellectual Disability Research Pub Date : 2024-05-13 DOI:10.1111/jir.13143

A. Bacherini, P. Anselmi, S. M. Havercamp, G. Balboni

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引用次数: 0

Abstract

Background

Physicians' erroneous assumptions about individuals with intellectual disability (ID) negatively impact the quality of care provided to this population. This study aimed to investigate the psychometric properties of the Beliefs About Adults with ID (BAID), an instrument we developed for measuring physicians' erroneous assumptions about adults with ID.

Methods

Two hundred ninety-two American physicians participated. Classical test theory and Rasch measurement theory were used to refine the scale (through item analysis, exploratory factor analysis, infit and outfit mean-squares statistics, and differential item functioning) and investigate its psychometric properties (functioning of the response scale, reliability, and validity).

Results

The BAID provided a unidimensional, reliable, valid, and precise measure in assessing high levels of erroneous assumptions. It showed convergent and divergent validity with the different factors of a scale measuring attitudes towards ID. The BAID items were discriminant, non-redundant, unambiguous, and invariant across gender and previous ID training. The BAID response scale was found to be appropriate for measuring physicians' erroneous assumptions about adults with ID.

Conclusions

BAID is a brief instrument with good psychometric properties to assess erroneous assumptions about adults with ID in physicians of different genders and who have/have not previously received ID training. Therefore, it might be helpful for research and medical education purposes.

查看原文本刊更多论文

美国医生对智障成人的看法量表的心理计量特性：经典测试和 Rasch 测量理论的应用。

背景：医生对智障人士（ID）的错误假设对为该群体提供的医疗服务质量产生了负面影响。本研究旨在调查 "关于智障成人的信念"（BAID）的心理测量特性，这是我们为测量医生对智障成人的错误假设而开发的一种工具：共有 292 名美国医生参加。采用经典测试理论和 Rasch 测量理论对量表进行了改进（通过项目分析、探索性因子分析、infit 和 outfit 均方统计以及差异项目功能），并对其心理测量特性（反应量表的功能、信度和效度）进行了研究：结果：BAID 在评估高水平错误假设方面提供了一种单维度、可靠、有效和精确的测量方法。它与测量对智障者态度的量表中的不同因子之间具有收敛和发散效度。BAID 项目具有区分性、非冗余性、明确性，并且在不同性别和以前接受过 ID 培训的情况下保持不变。BAID反应量表适用于测量医生对智障成人的错误假设：BAID是一种简短的工具，具有良好的心理测量特性，可用于评估不同性别、接受过或未接受过智障培训的医生对智障成人的错误假设。因此，它可能有助于研究和医学教育。

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

Journal of Intellectual Disability Research Multiple-

CiteScore

5.60

自引率

5.60%

发文量

期刊介绍： The Journal of Intellectual Disability Research is devoted exclusively to the scientific study of intellectual disability and publishes papers reporting original observations in this field. The subject matter is broad and includes, but is not restricted to, findings from biological, educational, genetic, medical, psychiatric, psychological and sociological studies, and ethical, philosophical, and legal contributions that increase knowledge on the treatment and prevention of intellectual disability and of associated impairments and disabilities, and/or inform public policy and practice. Expert reviews on themes in which recent research has produced notable advances will be included. Such reviews will normally be by invitation.