The University of Iowa College of Nursing, Iowa City, IA, USA.
Baylor College of Medicine, Department of Medicine, Houston, Texas. Houston VA HSR&D Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA.
West J Nurs Res. 2022 Aug;44(8):765-772. doi: 10.1177/01939459211015985. Epub 2021 May 17.
Little research has compared item functioning of the Patient-Reported Outcomes Measurement Information System (PROMIS) anxiety short form 6a and the generalized anxiety disorder 7-item scale using item response theory models. This was a secondary analysis of self-reported assessments from 67 at-risk U.S. military veterans. The two measures performed comparably well with data fitting adequately to models, acceptable item discriminations, and item and test information curves being unimodal and symmetric. The PROMIS anxiety short form 6a performed better in that item difficulty estimates had a wider range and distributed more evenly and all response categories had less floor effect, while the third category in most items of the generalized anxiety disorder 7-item scale were rarely used. While both measures may be appropriate, findings provided preliminary information supporting use of the PROMIS anxiety short form 6a as potentially preferable, especially for veterans with low-to-moderate anxiety. Further testing is needed in larger, more diverse samples.
很少有研究使用项目反应理论模型比较患者报告的结果测量信息系统（PROMIS）焦虑短表 6a 和广泛性焦虑障碍 7 项量表的项目功能。这是对 67 名美国高危退伍军人自我报告评估的二次分析。这两种测量方法表现相当，数据拟合模型良好，项目区分度可接受，项目和测试信息曲线单峰且对称。PROMIS 焦虑短表 6a 的表现更好，因为项目难度估计的范围更广，分布更均匀，所有反应类别都较少出现地板效应，而广泛性焦虑障碍 7 项量表中大多数项目的第三类别很少被使用。虽然这两种测量方法都可能适用，但研究结果提供了初步信息，支持使用 PROMIS 焦虑短表 6a，因为它可能更优，尤其是对于焦虑程度较低至中度的退伍军人。需要在更大、更多样化的样本中进一步测试。
