Physiotherapy Research Group, Department of Global Public Health and Primary Care, Physiotherapy Research Group, University of Bergen, Kalfarveien 31, N-5018 Bergen, Norway.
Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen.
Phys Ther. 2018 Feb 1;98(2):122-132. doi: 10.1093/ptj/pzx111.
The Body Awareness Rating Questionnaire (BARQ) is a self-report questionnaire aimed at capturing how people with long-lasting musculoskeletal pain reflect on their own body awareness. Methods based on classical test theory were applied to the development of the instrument and resulted in 4 subscales. However, the scales were not correlated, and construct validity might be questioned.
The primary purpose of this study was to explore the possibility of developing a unidimensional scale from items initially collected for the BARQ using Rasch analysis. A secondary purpose was to investigate the test-retest reliability of a revised version of the BARQ.
This was a methodological study.
Rasch and reliability analyses were performed for 3 samples of participants with long-lasting musculoskeletal pain. The first Rasch analysis was carried out on 66 items generated for the original BARQ and scored by 300 participants. The items supported by the first analysis were scored by a new group of 127 participants and analyzed in a second Rasch analysis. For the test-retest reliability analysis, 48 participants scored the revised BARQ items twice within 1 week.
The 2-step Rasch analysis resulted in a unidimensional 12-item revised version of the BARQ with a 4-point response scale (scores from 0 to 36). It showed a good fit to the Rasch model, with acceptable internal consistency, satisfactory fit residuals, and no disordered thresholds. Test-retest reliability was high, with an intraclass correlation coefficient of .83 (95% CI = .71-.89) and a smallest detectable change of 6.3 points.
The small sample size in the second Rasch analysis was a study limitation.
The revised BARQ is a unidimensional and feasible measurement of body awareness, recommended for use in the context of body-mind physical therapy approaches for musculoskeletal conditions.
身体感知评定问卷（BARQ）是一种自我报告问卷，旨在捕捉患有慢性肌肉骨骼疼痛的人如何看待自己的身体感知。该工具的开发采用了基于经典测试理论的方法，结果产生了 4 个分量表。然而，这些分量表之间没有相关性，因此其结构效度可能存在问题。
本研究的主要目的是探索使用 Rasch 分析从最初为 BARQ 收集的项目中开发单一维度量表的可能性。次要目的是调查 BARQ 修订版的重测信度。
这是一项方法学研究。
对 3 组患有慢性肌肉骨骼疼痛的参与者进行了 Rasch 分析和信度分析。首次 Rasch 分析对原始 BARQ 的 66 个项目进行，由 300 名参与者评分。对第一项分析中支持的项目，由新的 127 名参与者进行评分，并进行第二次 Rasch 分析。为了进行重测信度分析，48 名参与者在 1 周内对修订后的 BARQ 项目进行了两次评分。
两步 Rasch 分析得到了一个具有 4 点反应刻度（0 到 36 分）的 12 项修订版 BARQ 单维版本。它与 Rasch 模型拟合良好，具有可接受的内部一致性、满意的拟合残差和无无序阈值。重测信度较高，组内相关系数为 0.83（95%CI=0.71-0.89），最小可检测变化为 6.3 分。
第二次 Rasch 分析的样本量小是研究的局限性。
修订后的 BARQ 是一种身体感知的多维且可行的测量方法，建议在身心物理治疗方法治疗肌肉骨骼疾病的背景下使用。
