A comparison of computerized adaptive testing and fixed-length short forms for the Prosthetic Limb Users Survey of Mobility (PLUS-MTM)
A comparison of computerized adaptive testing and fixed-length short forms for the Prosthetic Limb Users Survey of Mobility (PLUS-MTM)
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DOI：
10.1177/0309364617728118
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发表时间：
2018-10-01
影响因子：
1.5
通讯作者：
Hafner, Brian J.
中科院分区：
文献类型：
--
作者：
Amtmann, Dagmar;Bamer, Alyssa M.;Hafner, Brian J.
背景：新的健康状况工具可以通过计算机化的适应性测试或简表来管理。假肢使用者活动度调查（PLUS-M-TM）是一项针对下肢缺失假肢使用者的活动度自我报告测量。本研究采用PLUS-M量表对计算机化自适应测验和简易测验的优缺点进行了研究。目的：比较计算机化自适应测验和固定长度的简易测验的成绩（7项和12项），以便为研究人员和临床医生提供指导，指导他们如何为不同用途选择最佳给药形式。研究设计：横断面观察性研究。下肢缺失者通过计算机化适应性测验和简易表格完成PLUS-M。管理时间，分数之间的相关性，和标准误进行了compared.Results：分数和标准误从计算机化的自适应测试，7-项目的简短形式，12-项目的简短形式是高度相关的，所有形式的管理是有效的。计算机化的自适应测试需要更少的时间来管理比纸张或电子短的形式，但是，节省的时间是最小的相比，7-item short form.Conclusion：结果表明，加M计算机化的自适应测试是最有效的，和管理方法之间的分数差异是最小的。与简短形式相比，计算机自适应测试的主要优势是在较高的移动性水平上获得更可靠的分数。临床相关性与健康相关的项目库，例如假肢用户移动性调查（PLUS-M-TM），可以通过计算机自适应测试（CAT）进行管理或作为固定长度的简短形式（SF）。这项研究的结果将帮助临床医生和研究人员决定他们是否应该投资于CAT管理系统，或者SF是否更合适。
Background: New health status instruments can be administered by computerized adaptive test or short forms. The Prosthetic Limb Users Survey of Mobility (PLUS-M-TM) is a self-report measure of mobility for prosthesis users with lower limb loss. This study used the PLUS-M to examine advantages and disadvantages of computerized adaptive test and short forms.Objectives: To compare scores obtained from computerized adaptive test to scores obtained from fixed-length short forms (7-item and 12-item) in order to provide guidance to researchers and clinicians on how to select the best form of administration for different uses.Study design: Cross-sectional, observational study.Methods: Individuals with lower limb loss completed the PLUS-M by computerized adaptive test and short forms. Administration time, correlations between the scores, and standard errors were compared.Results: Scores and standard errors from the computerized adaptive test, 7-item short form, and 12-item short form were highly correlated and all forms of administration were efficient. Computerized adaptive test required less time to administer than either paper or electronic short forms; however, time savings were minimal compared to the 7-item short form.Conclusion: Results indicate that the PLUS-M computerized adaptive test is most efficient, and differences in scores between administration methods are minimal. The main advantage of the computerized adaptive test was more reliable scores at higher levels of mobility compared to short forms.Clinical relevance Health-related item banks, like the Prosthetic Limb Users Survey of Mobility (PLUS-M-TM), can be administered by computerized adaptive testing (CAT) or as fixed-length short forms (SFs). Results of this study will help clinicians and researchers decide whether they should invest in a CAT administration system or whether SFs are more appropriate.