The Participation Assessment with Recombined Tools-Objective (PART-O): measurement properties of the Norwegian version after traumatic brain injury

To translate and evaluate the validity of the Participation Assessment with Recombined Tools-Objective (PART-O) in a Norwegian context. One hundred and twenty persons with TBI with verified intracranial lesions and persistent symptoms lasting more than 2 years, included in a randomized controlled trial, rated their participation using the PART-O at baseline. The PART-O with its three subscales (Productivity, Out and About, and Social Relations) was translated to Norwegian. Descriptive statistics, Cronbach's alpha, Rasch analysis, and correlation analysis were applied. The Rasch analysis indicated a unidimensional construct of PART-O and its subscales (χ2 &lt; 12.69, <i>p</i> &gt; 0.28). The internal consistency was moderate (Cronbach's alpha 0.48–0.52) and there was a need to reduce scaling options for most of the items. The Out and About and Productivity subscales had considerable floor effects. PART-O showed moderate positive correlation to TBI-related quality of life and global functioning. PART-O and its subscales reflect unidimensional aspects of participation. In the present Norwegian TBI population the original scaling of PART-O was too detailed for all subscales. The floor effects and suboptimal targeting between items and subjects participation level of the Out and About subscale is a matter of concern.

本研究旨在挪威临床语境下，对重组工具客观参与评估量表（Participation Assessment with Recombined Tools-Objective, PART-O）的效度开展翻译与验证工作。120名经确诊存在颅内病变且症状持续超过2年的创伤性脑损伤（Traumatic Brain Injury, TBI）患者被纳入一项随机对照试验，于基线阶段自行采用PART-O对自身参与情况进行评分。该量表包含生产效能、外出活动及社会关系3个维度，已被翻译成挪威语版本。本研究采用描述性统计分析、克朗巴哈α系数、拉希（Rasch）分析与相关分析方法开展数据分析。拉希分析结果显示，PART-O及其各维度均为单维结构（χ²<12.69，p>0.28）。量表内部一致性处于中等水平（克朗巴哈α系数为0.48~0.52），且多数条目需缩减其评分选项数量。外出活动与生产效能维度存在显著地板效应。PART-O总分与TBI相关生活质量及整体功能呈中等程度正相关。PART-O及其各维度均可反映参与功能的单维特征。在本次研究的挪威TBI患者群体中，PART-O原始评分选项对所有维度而言均过于细致。外出活动维度存在的地板效应，以及条目与受试者参与水平间的适配性欠佳问题，需引起关注。