Amtmann Dagmar, Bamer Alyssa M, Kim Jiseon, Bocell Fraser, Chung Hyewon, Park Ryoungsun, Salem Rana, Hafner Brian J
1 University of Washington, Seattle, WA, USA.
2 Chungnam National University, Daejeon, Republic of Korea.
Prosthet Orthot Int. 2018 Oct;42(5):476-482. doi: 10.1177/0309364617728118. Epub 2017 Sep 2.
New health status instruments can be administered by computerized adaptive test or short forms. The Prosthetic Limb Users Survey of Mobility (PLUS-M) 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.
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.
Cross-sectional, observational study.
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.
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.
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), 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.
新的健康状况评估工具可通过计算机自适应测试或简表形式进行施测。假肢使用者行动能力调查问卷（PLUS - M）是一种针对下肢缺失的假肢使用者行动能力的自我报告测量工具。本研究使用PLUS - M来检验计算机自适应测试和简表形式的优缺点。
比较计算机自适应测试所得分数与固定长度简表（7项和12项）所得分数，以便为研究人员和临床医生提供指导，告知他们如何针对不同用途选择最佳施测形式。
横断面观察性研究。
下肢缺失个体通过计算机自适应测试和简表形式完成PLUS - M。比较施测时间、分数之间的相关性以及标准误。
计算机自适应测试、7项简表和12项简表的分数及标准误高度相关，且所有施测形式都有效。计算机自适应测试比纸质或电子简表所需的施测时间更少；然而，与7项简表相比，节省的时间很少。
结果表明，PLUS - M计算机自适应测试效率最高，施测方法之间的分数差异最小。计算机自适应测试的主要优势在于，与简表相比，在行动能力较高水平时分数更可靠。临床意义 与健康相关的题库，如假肢使用者行动能力调查问卷（PLUS - M），可通过计算机自适应测试（CAT）或作为固定长度简表（SFs）进行施测。本研究结果将帮助临床医生和研究人员决定他们是应该投资一个CAT施测系统，还是简表更合适。
