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目的评价自制胃癌影响因素调查问卷的信度和效度。方法在文献复习、实地调查和专家咨询的基础上编制胃癌影响因素调查问卷,对351例胃癌患者和健康人群进行问卷调查,分析量表的内部一致性、分半信度、内容效度、区分效度和结构效度等指标。结果问卷各维度的克朗巴赫(Cronbach sα)系数为0.712 0~0.886 3,分半信度为0.71,各领域的内部信度系数均≥0.7;各领域间相关系数较小,均小于各个领域的系数,表明问卷有良好的内容效度和区分效度;结构效度中,经因子分析,各主因子中各条目与其主成分大致相符。结论胃癌影响因素调查问卷具有良好的信度和效度,可以应用于胃癌现场流行病学调查及防治研究。
Objective To evaluate the reliability and validity of the questionnaire on the factors influencing home-made gastric cancer. Methods Based on the literature review, field investigation and expert consultation, the questionnaire of influencing factors of gastric cancer was compiled. 351 patients with gastric cancer and healthy population were surveyed, and the internal consistency, half reliability and content validity were analyzed. Validity and structural validity and other indicators. Results The Cronbach’s coefficient of each dimension in the questionnaire ranged from 0.712 0 to 0.886 3 and the half-reliability was 0.71. The internal reliability coefficients of all the fields were all ≥0.7. The correlation coefficients of all the fields were smaller than those of all fields Coefficient, indicating that the questionnaire has a good content validity and discriminant validity; structural validity, by factor analysis, each of the main factors in the main line with its main component roughly consistent. Conclusion The questionnaire of influencing factors of gastric cancer has good reliability and validity and can be applied to the field epidemiological investigation and prevention and cure of gastric cancer.