一般健康问卷 - 12项：针对葡萄牙人群的适应性研究。
General health questionnaire--12 items: adaptation study to the Portuguese population.
作者信息
Laranjeira Carlos António
机构信息
High School of Health Sciences Jean Piaget, College Jean Piaget, Viseu, Portugal.
出版信息
Epidemiol Psichiatr Soc. 2008 Apr-Jun;17(2):148-51.
AIMS
To assess the validity and reliability of the GHQ-12 in Portugal.
METHODS
Using a standard 'forward-backward' translation procedure, the English language version of the questionnaire was translated into Portuguese. To test reliability the internal consistency was assessed by Cronbach's alpha coefficient. Validity was performed using convergent validity. Finally, the factor structure of the questionnaire was extracted by performing principal component analysis using varimax rotation.
RESULTS
In all 790 undergraduates entered into the study. Reliability analysis showed satisfactory result (Cronbach's alpha coefficient = 0.91). Convergent validity indicated a significant negative correlation between the GHQ-12 and social support scores as expected (r = -0.54, P < 0.001). The principal component analysis showed that the GHQ-12 was a measure with two-factor structure.
CONCLUSION
The Portuguese version of the GHQ-12 has a good structural characteristic for measuring psychological well being.
目的
评估一般健康问卷-12（GHQ-12）在葡萄牙的有效性和可靠性。
方法
采用标准的“前后”翻译程序，将问卷的英文版本翻译成葡萄牙语。为测试可靠性，通过克朗巴哈α系数评估内部一致性。采用收敛效度进行效度检验。最后，使用方差最大化旋转进行主成分分析来提取问卷的因子结构。
结果
共有790名本科生参与了该研究。可靠性分析显示结果令人满意（克朗巴哈α系数 = 0.91）。收敛效度表明，正如预期的那样，GHQ-12与社会支持得分之间存在显著负相关（r = -0.54，P < 0.001）。主成分分析表明，GHQ-12是一种具有双因子结构的测量工具。
结论
葡萄牙语版的GHQ-12在测量心理健康方面具有良好的结构特征。
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