Bakhsh Hadeel R, Atallah Huthaifa M, Kablan Nilüfer, Ferriero Giorgio
Department of Rehabilitation Sciences, College of Health and Rehabilitation Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
Department of Prosthetics and Orthotics, School of Rehabilitation Sciences, The University of Jordan, Amman, Jordan.
Disabil Rehabil. 2025 Apr;47(8):2114-2122. doi: 10.1080/09638288.2024.2388858. Epub 2024 Aug 8.
To evaluate the psychometric properties of the Arabic version of the Activities-Specific Balance Confidence Scale using the 5-option response categories for individuals with lower limb amputation (ABC-5/Ar).
This was a methodological study on a convenience sample of individuals with unilateral lower-limb amputation attending outpatient rehabilitation centres in Saudi Arabia and Turkey ( = 155). Rasch analysis (WINSTEPS version 4.6.5) was used to examine the 5-categories rating scale structure, item fit, item difficulty hierarchy, person separation index, unidimensionality, local item dependency, and differential item functioning.
The ABC-5/Ar 5-response option demonstrated an appropriate model fit. Most items fit the Rasch model, except for item #12 "walk in a crowded mall," which showed an overfitting value of 0.63. The person separation indices 2.95 (Cronbach's = 0.96). Principal component analysis of residuals confirmed the unidimensionality of the scale; however, local dependency was detected between item #14 "Ride in escalator holding rail," and item #15 "Ride in escalator not holding rail."
The findings suggest that the ABC-5/Ar shows promise in assessing balance confidence in Arabic-speaking lower-limb prosthesis users. However, further studies with larger sample sizes and in diverse clinical contexts are needed to confirm its effectiveness in various clinical settings.
使用5级反应类别评估阿拉伯语版特定活动平衡信心量表（ABC - 5/Ar）在下肢截肢患者中的心理测量特性。
这是一项方法学研究，对沙特阿拉伯和土耳其门诊康复中心的单侧下肢截肢患者便利样本（n = 155）进行研究。采用拉施分析（WINSTEPS版本4.6.5）来检验5级评分量表结构、项目拟合、项目难度层次、人员分离指数、单维度性、局部项目依赖性和差异项目功能。
ABC - 5/Ar的5级反应选项显示出合适的模型拟合。除项目#12“在拥挤的商场行走”外，大多数项目符合拉施模型，该项目的过拟合值为0.63。人员分离指数为2.95（克朗巴哈α = 0.96）。残差的主成分分析证实了量表的单维度性；然而，在项目#14“扶着扶手乘坐自动扶梯”和项目#15“不扶扶手乘坐自动扶梯”之间检测到局部依赖性。
研究结果表明，ABC - 5/Ar在评估阿拉伯语下肢假肢使用者的平衡信心方面显示出前景。然而，需要在更大样本量和不同临床环境中进行进一步研究，以确认其在各种临床环境中的有效性。
