中老年女性3天营养及体力活动问卷的信度和效度评价

Reliability and Validity of a Three-day Nutrition and Physical Activity Questionnaire for Middle and Elder Aged Female

目的:评价中老年女性3天营养及体力活动问卷的信度和效度。方法:采用问卷调查、测量、数理统计等方法在西安市城区进行了中老年女性营养及体力活动问卷验证性研究;用重复实验评价问卷的信度,专家评价和确立一个效标来分别评价问卷的内容效度、结构效度和效标效度。结果: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天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。结论:3天的营养及体力活动问卷的信度和效度均在0.53以上,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 purpose of this study was to evaluate the reliability and validity of a 3-day nutrition and physical activity questionnaire for middle and elder aged female. Through using the method of questionnaire, measurement and mathematical statistics, this paper makes experimental study on the questionnaire of nutrition and physical activities for middle and old aged female in Xi＇an city. The questionnaire was established. The result showed that the was validated by expert＇s evaluation and criterion reliability of questionnaire was good between test and retest ,which showed no significant difference,and the correlative coefficient was 0.55. The correlative coefficient between the results of three-day investigation and criterion was 0.53. It concluded that the reliability and validity of a three-day nutrition and physical activities questionnaire were above 0. 53,and can be used to evaluate middle and old aged female＇s nutrition and physical activities.