Musculoskeletal Division, The George Institute for International Health, The University of Sydney, Sydney, New South Wales, Australia.
J Clin Epidemiol. 2010 Aug;63(8):920-5. doi: 10.1016/j.jclinepi.2009.10.005. Epub 2010 Feb 20.
OBJECTIVE: To evaluate the convergent and construct validity of the Physiotherapy Evidence Database (PEDro) scale used to rate the methodological quality of randomized trials in physiotherapy. STUDY DESIGN AND SETTING: PEDro total scores and individual-item scores were extracted from 9,456 physiotherapy trials indexed on PEDro. Convergent validity was tested by comparing PEDro total scores with three other quality scales. Construct validity was tested by regressing the PEDro score and individual-item scores with the Institute for Scientific Information Web of Knowledge impact factors (IF) and SCImago journal rankings (SJR) for the journals in which the trials were published. RESULTS: Testing of convergent validity revealed correlations with the other quality scales ranging from 0.31 to 0.69. The PEDro total score was weakly but significantly associated with IF and SJR (P < 0.0001). Eight of the 10 individual scale items that contribute to the PEDro total score were significantly associated with IF. CONCLUSION: This study provides preliminary evidence of the convergent and construct validity of the PEDro total score and the construct validity of eight individual scale items.
目的:评估 Physiotherapy Evidence Database(PEDro)量表用于评估物理治疗随机试验方法学质量的收敛效度和结构效度。
研究设计和设置:从 PEDro 索引的 9456 项物理治疗试验中提取 PEDro 总分和个别项目得分。通过比较 PEDro 总分与其他三个质量量表来测试收敛效度。通过将 PEDro 得分和个别项目得分与发表试验的期刊的 Institute for Scientific Information Web of Knowledge 影响因子(IF)和 SCImago 期刊排名(SJR)进行回归来测试结构效度。
结果:收敛效度测试显示与其他质量量表的相关性在 0.31 到 0.69 之间。PEDro 总分与 IF 和 SJR 呈弱但显著相关(P<0.0001)。对 PEDro 总分有贡献的 10 个个别量表项目中的 8 个与 IF 显著相关。
结论:本研究初步证明了 PEDro 总分的收敛效度和结构效度以及 8 个个别量表项目的结构效度。
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