Using psychometric techniques to improve the Balance Evaluation Systems Test: the mini-BESTest.

Using psychometric techniques to improve the Balance Evaluation Systems Test: the mini-BESTest.
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DOI:
10.2340/16501977-0537
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发表时间:
2010-04
影响因子:
3.5
通讯作者:
Giordano A
Giordano A
中科院分区:
医学3区
文献类型:
--
作者:
Franchignoni F;Horak F;Godi M;Nardone A;Giordano A

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在心理测量分析的帮助下,改进平衡评估系统测试(BESTest),该工具旨在分析可能导致成人功能平衡不良的几种姿势控制系统。我们在115例连续的成人患者中检查了BESTest的性能,这些患者具有不同的神经系统诊断和疾病严重程度,涉及平衡障碍的康复。本研究采用因素分析(探索性和验证性)和Rasch分析来处理数据,以产生一种新的、简化的和连贯的平衡测量工具。因素分析选择了24个原始的36个最佳项目可能代表的一维结构的“动态平衡”。然后使用Rasch分析:1)改进评级类别,2)删除10个项目(不匹配或显示局部依赖性)。由其余14个任务组成的模型进行了验证性因素分析,以满足现代测量的严格要求。新的14项量表(称为mini-BESTest)侧重于动态平衡,可以在10-15分钟内进行,并且包含均匀属于原始BESTest六个部分中的四个部分的项目。需要进一步的研究来证实mini-BESTest在临床环境中的有用性。
To improve, with the aid of psychometric analysis, the Balance Evaluation System’s Test (BESTest), a tool designed to analyse several postural control systems that may contribute to poor functional balance in adults. We examined performance of the BESTest in a convenience sample of 115 consecutive adult patients with diverse neurological diagnoses and disease severity, referred to rehabilitation for balance disorders. Factor (both explorative and confirmatory) and Rasch analysis were used to process the data in order to produce a new, reduced and coherent balance measurement tool. Factor analysis selected 24 out of the 36 original BESTest items likely to represent the unidimensional construct of ‘dynamic balance’. Rasch analysis was then used to: 1) improve the rating categories, and 2) delete 10 items (misfitting or showing local dependency). The model consisting of the remaining 14 tasks was verified with confirmatory factor analysis to meet the stringent requirements of modern measurement. The new 14-item scale (dubbed mini-BESTest) focuses on dynamic balance, can be conducted in 10-15 minutes, and contains items belonging evenly to four of the six sections from the original BESTest. Further studies are needed to confirm the usefulness of the mini-BESTest in clinical settings.
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