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目的探讨诺丁汉健康量表(Nottingham Health Profile,NHP)用于城市外来务工人员生活质量测定的信度和效度。方法采用分层整群抽样的方法,于2008年3-4月间,在郑州市中牟县随机抽取723名外来务工人员进行生活质量测量。用Spearman-Brown公式计算量表的折半信度,Cronbach’sα系数衡量其内部一致性信度,因子分析方差最大旋转法分析其结构效度,Spearman秩相关来考察其内容效度。结果 NHP量表折半信度系数是0.71;总的Cronbach’sα系数为0.75,各维度Cronbach’sα系数均小于0.70,其中最小值0.26(精力水平维度),最大值0.63(情绪反应维度);所有维度的集合效度定标试验成功率为50.00%,区分效度定标试验成功率除去躯体活动维度为95.80%外,其余各维度均为100.00%;因子分析产生的两个公因子,分别代表生理健康和心理健康,累积方差贡献率为60.00%。结论中文版健康测量量表NHP具有良好的信度、效度和可接受性,可以应用于城市外来务工人员生活质量测定,但需在实际应用中进一步完善。
Objective To investigate the reliability and validity of the Nottingham Health Profile (NHP) for measuring the quality of life of urban migrant workers. Methods A stratified cluster sampling method was used to measure the quality of life of 723 migrant workers randomly from April to April in 2008 in Zhongmou County, Zhengzhou City. The half reliability of the scale was calculated by Spearman-Brown formula, Cronbach’s α coefficient was used to measure the internal consistency reliability, and the factor analysis variance maximum rotation method was used to analyze its structural validity and Spearman rank correlation. Results The coefficient of half-value of the NHP scale was 0.71. The total Cronbach’s α coefficient was 0.75. The Cronbach’s alpha coefficients of all dimensions were less than 0.70, with the minimum of 0.26 (energy level dimension) and the maximum of 0.63 (emotional response dimension) The success rate of scale validity was 50.00%, and the success rate of discriminant validity calibration test was 100.00% except the dimension of physical activity was 95.80%. The two common factors produced by factor analysis were Physiological and mental health, the cumulative variance contribution rate was 60.00%. Conclusion The Chinese version of the health measurement scale NHP has good reliability, validity and acceptability, which can be used to measure the quality of life of migrant workers in urban areas, but need to be further improved in practical application.