带有过滤器问题的临床工具的项目反应模型:区分症状的存在与严重程度

IF 1 4区 心理学 Q4 PSYCHOLOGY, MATHEMATICAL
Applied Psychological Measurement Pub Date : 2024-09-01 Epub Date: 2024-06-17 DOI:10.1177/01466216241261709
Brooke E Magnus
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引用次数: 0

摘要

使用筛选/追踪反应格式的临床工具通常会产生过多零的数据,尤其是在对非临床样本进行施测时。如果将单维分级反应模型(GRM)与这些数据进行拟合,参数估计和量表得分往往表明,该工具只能测量具有严重心理病理学水平的个体之间的个体差异。在这种情况下,明确考虑多余零的替代项目反应模型可能更合适。多变量障碍分级反应模型(MH-GRM)是之前为处理零膨胀问卷数据而提出的,它包括两个潜变量:易感性和严重性,前者是对筛选问题的反应的基础,后者是对后续问题的反应的基础。通过模拟数据和经验数据,目前的研究表明,与单维 GRM 相比,MH-GRM 能够更好地捕捉更广泛的精神病理学中的个体差异,而且当单维 GRM 与包含过滤问题的问卷数据相匹配时,严重程度连续体低端的个体差异在很大程度上得不到测量。本文讨论了其实际意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Item Response Modeling of Clinical Instruments With Filter Questions: Disentangling Symptom Presence and Severity.

Clinical instruments that use a filter/follow-up response format often produce data with excess zeros, especially when administered to nonclinical samples. When the unidimensional graded response model (GRM) is then fit to these data, parameter estimates and scale scores tend to suggest that the instrument measures individual differences only among individuals with severe levels of the psychopathology. In such scenarios, alternative item response models that explicitly account for excess zeros may be more appropriate. The multivariate hurdle graded response model (MH-GRM), which has been previously proposed for handling zero-inflated questionnaire data, includes two latent variables: susceptibility, which underlies responses to the filter question, and severity, which underlies responses to the follow-up question. Using both simulated and empirical data, the current research shows that compared to unidimensional GRMs, the MH-GRM is better able to capture individual differences across a wider range of psychopathology, and that when unidimensional GRMs are fit to data from questionnaires that include filter questions, individual differences at the lower end of the severity continuum largely go unmeasured. Practical implications are discussed.

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来源期刊
CiteScore
2.30
自引率
8.30%
发文量
50
期刊介绍: Applied Psychological Measurement publishes empirical research on the application of techniques of psychological measurement to substantive problems in all areas of psychology and related disciplines.
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