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目的评估SF-12量表用于评价“农转非”居民生命质量的信度和效度。方法采用内部一致性检验和折半信度评价SF-12生命质量量表的信度,采用结构效度、内容效度评价SF-12生命质量量表的效度。结果 SF-12量表内部一致性Cronbach’sα系数为0.846;折半信度Spearman-Brown系数为0.803;主成分分析结果显示SF-12量表可以抽取两个公因子分别代表生理和心理,与理论假设一致;PCS题项间r都>0.550,MCS题项间r也都>0.550,PCS和MCS题项之间r=0.142。结论 SF-12量表具有较好的信效度,能够用于评价“农转非”居民生命质量,但个别条目需要适度调整。
Objective To evaluate the reliability and validity of the SF-12 scale for evaluating the quality of life of non-rural residents. Methods The reliability of the SF-12 quality of life scale was evaluated by internal consistency test and half-reliability, and the validity of the SF-12 quality of life scale was evaluated by the structural validity and content validity. Results The internal consistency of SF-12 scale Cronbach’s alpha coefficient was 0.846; the Spearman-Brown coefficient of half-reliability was 0.803; the principal component analysis showed that the SF-12 scale could extract two common factors representing the physiological and psychological respectively, Assumptions are the same; between items of the PCS item r is more than 0.550, items of the MCS item r are all more than 0.550, and r = 0.142 between the items of PCS and MCS. Conclusion The SF-12 scale has a good reliability and validity, which can be used to evaluate the quality of life of non-agricultural residents. However, some items need to be adjusted moderately.