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采用问卷调查法、测量法、数理统计法等方法对西安市中老年女性营养及体力活动问卷进行了验证性研究。结果显示:营养及体力活动问卷重复实验的结果之间一致性较好,差异不具有显著性意义(P<0.05),相关系数为0.55。问卷的表面效度和结构效度均较高,3 d营养及体力活动问卷调查结果与效标之间的相关系数为0.53。说明该问卷能可靠有效地反映西安市城区中老年女性的营养及体力活动水平。
The questionnaire, measurement, mathematical statistics and other methods were used to verify the Xi’an middle-aged and old women’s nutrition and physical activity questionnaire. The results showed that there was a good agreement between the results of repeated tests of nutrition and physical activity questionnaire, the difference was not significant (P <0.05), the correlation coefficient was 0.55. The questionnaire had a high surface validity and structural validity, and the correlation coefficient between the results of the 3-day nutrition and physical activity questionnaire and the effective standard was 0.53. It shows that the questionnaire can reflect the level of nutrition and physical activity of middle-aged and elderly women in urban area of Xi’an City reliably and effectively.