Kisala Pamela A, Victorson David, Pace Natalie, Heinemann Allen W, Choi Seung W, Tulsky David S
J Spinal Cord Med. 2015 May;38(3):326-34. doi: 10.1179/2045772315Y.0000000022.
To describe the development and psychometric properties of the SCI-QOL Psychological Trauma item bank and short form.
Using a mixed-methods design, we developed and tested a Psychological Trauma item bank with patient and provider focus groups, cognitive interviews, and item response theory based analytic approaches, including tests of model fit, differential item functioning (DIF) and precision.
We tested a 31-item pool at several medical institutions across the United States, including the University of Michigan, Kessler Foundation, Rehabilitation Institute of Chicago, the University of Washington, Craig Hospital and the James J. Peters/Bronx Veterans Administration hospital.
A total of 716 individuals with SCI completed the trauma items
The 31 items fit a unidimensional model (CFI=0.952; RMSEA=0.061) and demonstrated good precision (theta range between 0.6 and 2.5). Nine items demonstrated negligible DIF with little impact on score estimates. The final calibrated item bank contains 19 items
The SCI-QOL Psychological Trauma item bank is a psychometrically robust measurement tool from which a short form and a computer adaptive test (CAT) version are available.
描述脊髓损伤生活质量量表（SCI-QOL）心理创伤题库及简表的开发过程和心理测量特性。
采用混合方法设计，我们通过患者和医疗服务提供者焦点小组、认知访谈以及基于项目反应理论的分析方法，包括模型拟合检验、项目功能差异（DIF）检验和精度检验，开发并测试了一个心理创伤题库。
我们在美国的多个医疗机构对一个由31个项目组成的题库进行了测试，这些机构包括密歇根大学、凯斯勒基金会、芝加哥康复研究所、华盛顿大学、克雷格医院以及詹姆斯·J·彼得斯/布朗克斯退伍军人管理局医院。
共有716名脊髓损伤患者完成了创伤项目。
31个项目符合单维模型（CFI = 0.952；RMSEA = 0.061），并显示出良好的精度（θ范围在0.6至2.5之间）。9个项目的DIF可忽略不计，对分数估计影响很小。最终校准后的题库包含19个项目。
SCI-QOL心理创伤题库是一种心理测量稳健的测量工具，由此可获得简表和计算机自适应测试（CAT）版本。
