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目的分析SF-12量表用于评价城市建筑业农民工人群生存质量的信度和效度。方法采用内部一致性信度评估SF-12量表的信度,采用集合效度、区分效度和结构效度评估SF-12量表的效度。结果 SF-12量表评价城市建筑业农民工人群的内部一致性信度Cronbach’sα系数为0.776,8个维度的集合效度定标试验成功率为100%,区分效度定标试验成功率为100%;对量表的理论模型进行验证性因子分析,所得模型与原始假定一致,拟合指标结果为RMSEA=0.052,NFI=0.973,CFI=0.982,AGFI=0.964。结论 SF-12量表适用于城市建筑业农民工群体的生存质量评价。
Objective To analyze the reliability and validity of SF-12 scale in evaluating the quality of life of migrant workers in urban construction industry. Methods The internal consistency reliability was used to evaluate the reliability of the SF-12 scale, and the validity of the SF-12 scale was assessed using the set validity, discriminative validity and structural validity. Results The Cronbach’sα coefficient of the internal consistency reliability of the urban construction workers’ population was 0.776 in SF-12 scale, and the success rate of the set validity test of 8 dimensions was 100%. The discriminant validity calibration test success rate (100%). The confirmatory factor analysis of the theoretical model of the scale was carried out. The obtained model was consistent with the original hypothesis. The fitting results showed RMSEA = 0.052, NFI = 0.973, CFI = 0.982 and AGFI = 0.964. Conclusion The SF-12 scale is suitable for evaluating the quality of life of migrant workers in urban construction industry.