Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, 625 Michigan Avenue, 27th Floor, Chicago, IL 60611, United States.
CTB/McGraw-Hill, 20 Ryan Ranch Road, Monterey, CA 93940, United States.
J Anxiety Disord. 2014 Jan;28(1):88-96. doi: 10.1016/j.janxdis.2013.11.006. Epub 2013 Dec 1.
Researchers and clinicians wishing to assess anxiety must choose from among numerous assessment options, many of which purport to measure the same or a similar construct. A common reporting metric would have great value and can be achieved when similar instruments are administered to a single sample and then linked to each other to produce cross-walk score tables. Using item response theory (IRT), we produced cross-walk tables linking three popular "legacy" anxiety instruments--MASQ (N=743), GAD-7 (N=748), and PANAS (N=1120)--to the anxiety metric of the NIH Patient Reported Outcomes Measurement Information System (PROMIS(®)). The linking relationships were evaluated by resampling small subsets and estimating confidence intervals for the differences between the observed and linked PROMIS scores. Our results allow clinical researchers to retrofit existing data of three commonly used anxiety measures to the PROMIS Anxiety metric and to compare clinical cut-off scores.
研究人员和临床医生如果想要评估焦虑，必须从众多评估选项中进行选择，其中许多评估选项声称可以测量相同或相似的结构。当类似的工具被用于单一样本，并相互关联以产生交叉行走分数表时，一个常见的报告指标将具有很大的价值。我们使用项目反应理论（IRT），为三个流行的“传统”焦虑工具——MASQ（N=743）、GAD-7（N=748）和 PANAS（N=1120）——到 NIH 患者报告的结果测量信息系统（PROMIS(®)）的焦虑度量值制作了交叉行走表。通过对小样本进行重新抽样并估计观察到的和链接的 PROMIS 分数之间的差异的置信区间，评估了链接关系。我们的结果允许临床研究人员将三种常用焦虑测量工具的现有数据转换为 PROMIS 焦虑度量值，并比较临床临界分数。
