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首页> 外文期刊>Archives of Physical Medicine and Rehabilitation >Development and Psychometric Evaluation of a Fatigability Index for Full-Time Wheelchair Users With Spinal Cord Injury
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Development and Psychometric Evaluation of a Fatigability Index for Full-Time Wheelchair Users With Spinal Cord Injury

机译：脊髓损伤全职轮椅使用者疲劳指数的发展和心理评价

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ObjectiveTo develop and evaluate psychometrically a self-reported instrument assessing physical fatigability (PF) and mental fatigability (MF) in adults with spinal cord injury (SCI). DesignCross-sectional. SettingPeer-support groups at rehabilitation centers, online support groups. ParticipantsAdults with SCI (N=464) in the United States. InterventionsNot applicable. Main Outcome MeasuresThe dimensional structure was assessed by confirmatory factor analysis. The relationship between item responses and fatigability was measured with item response theory (graded response model). Reliability was measured with test information functions. Differential item functioning was evaluated with Wald chi-square tests and the weighted area between the curves. Construct validity was assessed using the known groups method. ResultsAn 82-item pool was developed from prior qualitative research and consultations with rehabilitation experts. A non-probability sample (N=464) was used to evaluate the psychometric properties of the PF and MF scales. The item pool was reduced to 75 based on factor loadings and R2. Both scales are primarily unidimensional, despite moderate multidimensionality. There is good discrimination overall: 18 PF items and 26 MF items have high or very high discrimination power (slopes > 1.35). The measurement precision in the theta range -2.0 to 2.5 is the equivalent of 0.94 reliability for PF and 0.91 for MF. For both measures, F statisticsPvalues were significant atP<.01, and means were higher for those with paraplegia vs quadriplegia, and for those with incomplete paraplegia. ConclusionsThe Fatigability Index is the first instrument designed to assess physical and mental fatigability in adults with SCI. The index highlights causes of fatigue and areas requiring immediate intervention. Development of short-forms and further research on representative samples are necessary.
机译：ObjectiveTo在具有脊髓损伤（SCI）的成年人中，在脊髓损伤（SCI）中的身体疲劳性（PF）和精神疲劳（MF）进行开发和评估精神度计的自我报告的仪器。 DesignCross-分段。在康复中心，在线支持小组的SettingPeer-Support组。与SCI（n = 464）的参与者讨论者。介入不适用。通过确认因子分析评估主要结果测量尺寸结构。用物品响应理论（分级响应模型）测量项目响应和疲劳之间的关系。使用测试信息功能测量可靠性。使用Wald Chi-Squal测试和曲线之间的加权区域评估差分项目功能。使用已知组方法评估构建有效性。结果82项池是从先前的定性研究和与康复专家进行咨询制定的。使用非概率样本（n = 464）来评估PF和MF刻度的心理测量特性。基于因子负载和R2，物品池减少到75。尽管是多维的多维数度，但两种尺度都主要是单向的。总体上存在良好的歧视：18个PF项目和26个MF物品具有高或非常高的辨别力（斜坡> 1.35）。 Theta范围-2.0至2.5中的测量精度是PF和MF的PF和0.91的0.94可靠性。对于这两种措施，F统计学阶段均为显着的ATP <.01，对于截瘫患者的那些，手段较高，以及截瘫患者的人。结论疲劳指数是第一仪器，旨在评估与SCI的成人身心疲劳性。该指数突出了需要立即干预的疲劳和区域的原因。需要开发短语和进一步研究代表样品。

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