McDonough Christine M, Ni Pengsheng, Peterik Kara, Marfeo Elizabeth E, Marino Molly E, Meterko Mark, Rasch Elizabeth K, Brandt Diane E, Jette Alan M, Chan Leighton
Health and Disability Research Institute, Boston University School of Public Health, 715 Albany Street, T5W, Boston, MA, 02118, USA.
Department of Orthopaedic Surgery, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
Qual Life Res. 2017 Mar;26(3):789-798. doi: 10.1007/s11136-016-1477-1. Epub 2016 Dec 22.
To expand content of the physical function domain of the Work Disability Functional Assessment Battery (WD-FAB), developed for the US Social Security Administration's (SSA) disability determination process.
Newly developed questions were administered to 3532 recent SSA applicants for work disability benefits and 2025 US adults. Factor analyses and item response theory (IRT) methods were used to calibrate and link the new items to the existing WD-FAB, and computer-adaptive test simulations were conducted.
Factor and IRT analyses supported integration of 44 new items into three existing WD-FAB scales and the addition of a new 11-item scale (Community Mobility). The final physical function domain consisting of: Basic Mobility (56 items), Upper Body Function (34 items), Fine Motor Function (45 items), and Community Mobility (11 items) demonstrated acceptable psychometric properties.
The WD-FAB offers an important tool for enhancement of work disability determination. The FAB could provide relevant information about work-related functioning for initial assessment of claimants; identifying denied applicants who may benefit from interventions to improve work and health outcomes; enhancing periodic review of work disability beneficiaries; and assessing outcomes for policies, programs and services targeting people with work disability.
为美国社会保障管理局（SSA）的残疾判定流程开发的工作残疾功能评估量表（WD-FAB），扩大其身体功能领域的内容。
向3532名近期申请SSA工作残疾福利的申请人和2025名美国成年人发放新开发的问题。使用因子分析和项目反应理论（IRT）方法对新项目进行校准，并将其与现有的WD-FAB相联系，同时进行计算机自适应测试模拟。
因子分析和IRT分析支持将44个新项目整合到现有的三个WD-FAB量表中，并新增一个包含11个项目的量表（社区活动能力）。最终的身体功能领域包括：基本活动能力（56个项目）、上肢功能（34个项目）、精细运动功能（45个项目）和社区活动能力（11个项目），显示出可接受的心理测量特性。
WD-FAB为加强工作残疾判定提供了一个重要工具。该量表可为申请人的初始评估提供有关工作相关功能的相关信息；识别可能从改善工作和健康结果的干预措施中受益的被拒申请人；加强对工作残疾受益人的定期审查；以及评估针对工作残疾人士的政策、项目和服务的成果。
