Murray Erin K, Auld Garry, Baker Susan S, Barale Karen, Franck Karen, Khan Tarana, Palmer-Keenan Debra, Walsh Jennifer
Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, CO.
Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, CO.
J Nutr Educ Behav. 2017 Oct;49(9):777-783.e1. doi: 10.1016/j.jneb.2017.05.341. Epub 2017 Jul 8.
Research methods are described for developing a food and physical activity behaviors questionnaire for the Expanded Food and Nutrition Education Program (EFNEP), a US Department of Agriculture nutrition education program serving low-income families.
Mixed-methods observational study. The questionnaire will include 5 domains: (1) diet quality, (2) physical activity, (3) food safety, (4) food security, and (5) food resource management. A 5-stage process will be used to assess the questionnaire's test-retest reliability and content, face, and construct validity.
Research teams across the US will coordinate questionnaire development and testing nationally.
Convenience samples of low-income EFNEP, or EFNEP-eligible, adult participants across the US.
A 5-stage process: (1) prioritize domain concepts to evaluate (2) question generation and content analysis panel, (3) question pretesting using cognitive interviews, (4) test-retest reliability assessment, and (5) construct validity testing.
A nationally tested valid and reliable food and physical activity behaviors questionnaire for low-income adults to evaluate EFNEP's effectiveness.
Cognitive interviews will be summarized to identify themes and dominant trends. Paired t tests (P ≤ .05) and Spearman and intra-class correlation coefficients (r > .5) will be conducted to assess reliability. Construct validity will be assessed using Wilcoxon t test (P ≤ .05), Spearman correlations, and Bland-Altman plots.
描述为扩大食品与营养教育计划（EFNEP）开发一份食品和身体活动行为问卷的研究方法，该计划是美国农业部为低收入家庭提供营养教育的项目。
混合方法观察性研究。问卷将包括5个领域：（1）饮食质量，（2）身体活动，（3）食品安全，（4）粮食安全，以及（5）食品资源管理。将采用一个5阶段的过程来评估问卷的重测信度以及内容、表面和结构效度。
美国各地的研究团队将在全国范围内协调问卷的开发和测试。
美国低收入的EFNEP参与者或符合EFNEP条件的成年参与者的便利样本。
一个5阶段的过程：（1）对要评估的领域概念进行优先排序，（2）问题生成和内容分析小组，（3）使用认知访谈进行问题预测试，（4）重测信度评估，以及（5）结构效度测试。
一份经过全国测试的、有效且可靠的针对低收入成年人的食品和身体活动行为问卷，以评估EFNEP的有效性。
将对认知访谈进行总结以识别主题和主要趋势。将进行配对t检验（P≤0.05）以及斯皮尔曼和组内相关系数（r>0.5）以评估信度。将使用威尔科克森t检验（P≤0.05）、斯皮尔曼相关性以及布兰德-奥特曼图来评估结构效度。
