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目的考核北京市居民自报健康情况调查问卷的信度,以完善调查问卷的条目。方法采用横断面调查的方法,在北京市18个区县中开展自报健康问卷调查,建立数据库并以获得的5 030例调查数据为基础,通过分析信度指标(概化系数Eρ2)和可靠性指数(Φ),评价调查问卷的信度。结果被调查者与条目的交互效应变异分量的估计值为0.287 9,占总变异58.62%,是变异的主要来源。决策研究中相对误差变异σ2(δ)为0.028 8,概化系数Eρ2为0.855 0。结论调查问卷的整体信度较高,质量较好,但在条目数量上尚可精简。
Objective To assess the reliability of Beijing residents’ self-reported health questionnaire to improve the entries of the questionnaire. Methods The method of cross-sectional survey was used to conduct a self-reported health survey among 18 districts and counties in Beijing. Based on the survey data of 5,030 obtained by the survey, the reliability index (generalized coefficient Eρ2) and reliability Sex index (Φ), evaluation of the reliability of the questionnaire. Results The estimated variance of interaction between respondents and entries was 0.287 9, accounting for 58.62% of the total variance, which was the main source of variation. The relative error variance σ2 (δ) in decision research is 0.028 8, and the generalized coefficient Eρ2 is 0.855 0. Conclusion The overall reliability of the questionnaire is high and the quality is good, but the number of entries can be streamlined.