Application of Rasch Analysis to Timed Instrumental Activities of Daily Living in Low Vision: A Validation Study.
Application of Rasch Analysis to Timed Instrumental Activities of Daily Living in Low Vision: A Validation Study.
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拉什分析在低视力日常生活定时仪器活动中的应用：一项验证研究。
DOI：
10.1097/opx.0000000000002026
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Massof,RobertW
中科院分区：
文献类型：
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作者：
Gobeille,MicaelaR;Fujiwara,Kyoko;Massof,RobertW
EQUISEThis研究旨在验证Rasch分析的性能为基础的结果measure与现实世界relevance.METHODSLow视力患者（N= 161）接受服务的职业治疗师进行定时工具性日常生活活动（TIADL）在他们的家中的任务。Rasch分析应用于错误计数和性能时间数据。内部效度进行了评估，估计措施的准确性和精密度的评价。外部效度进行了评估，通过比较TIADL措施与活动清单（即，从自我报告的难度评级）估计的措施。TIASTask措施是很好地针对个人的措施，估计从任务执行时间，但针对性差的措施，估计从任务执行错误，其中大多数任务试验（72%）进行了没有错误的基线。基于错误的人的措施有较大的标准误与较小的伪R2比基于时间的人或任务的措施和基于错误的任务措施。基于时间和误差的估计符合预期值的人员测量信息。基于时间的人和任务的措施和相应的基于错误的估计之间的线性回归的斜率约为0.5，观察与基于错误的措施比基于时间的措施更大的估计误差方差一致。时间为基础的TIADL人的措施（x）和活动清单的人的措施（估计从所有项目，y）共线性，但弱相关（R= 0.19）。在我们的数据集中，任务表现错误的频率不高的天花板效应限制了使用TIADL错误数据来衡量康复结果。
PURPOSEThis study aimed to validate Rasch analysis of a performance-based outcome measure with real-world relevance.METHODSLow vision patients (N= 161) receiving services from an occupational therapist performed Timed Instrumental Activity of Daily Living (TIADL) tasks in their homes. Rasch analysis was applied to error count and performance time data. Internal validity was assessed with evaluations of the accuracy and precision of estimated measures. External validity was assessed by comparing TIADL measures with measures estimated from the Activity Inventory (ie, from self-reported difficulty ratings).RESULTSTask measures were well targeted to person measures estimated from task performance time but were poorly targeted for measures estimated from task performance errors, for which most task trials (72%) were performed without error at baseline. Error-based person measures had larger standard errors with a smaller pseudo-R 2 than time-based person or task measures and error-based task measures. Person measure infits for time-and error-based estimates conformed to expected values. The linear regressions between time-based person and task measures and corresponding error-based estimates had slopes of approximately 0.5, an observation consistent with larger estimation error variance for error-based measures than for time-based measures. Time-based TIADL person measures (x) and Activity Inventory person measures (estimated from all items, y) were colinear but weakly correlated (R= 0.19).CONCLUSIONSFunctional ability measures estimated from performance times of instrumental activity of daily living tasks in patients' homes demonstrate good internal and external validity. The ceiling effect from the infrequency of task performance errors in our data set limits use of TIADL error data to measure rehabilitation outcomes.