Guthrie J F
Agricultural Research Service, U.S. Department of Agriculture, Hyattsville, MD 20782.
J Nutr. 1994 Sep;124(9 Suppl):1813S-1819S. doi: 10.1093/jn/124.suppl_9.1813S.
Quantitative nutrition education research assists nutrition educators first, by helping them understand the factors that influence dietary behavior, and second, by providing a systematic method of investigating the most effective methods for influencing dietary behavior to promote health. This paper discusses four broad categories of factors influencing dietary behavior: physiological factors, sociodemographic factors, behavioral and lifestyle factors, and knowledge and attitude factors. Research findings illustrating what can be learned from examination of each of these categories of factors are presented. The need for more unified, theory-based research on factors influencing dietary behavior is discussed and the U.S. Department of Agriculture's Diet and Health Knowledge Survey is presented as a data set that can be used to carry out this type of research. Finally, the advantages of using both qualitative and quantitative research methodologies to investigate methods of influencing dietary behavior are argued.
其一，帮助他们了解影响饮食行为的因素；其二，提供一种系统的方法来研究影响饮食行为以促进健康的最有效方法。本文讨论了影响饮食行为的四大类因素：生理因素、社会人口统计学因素、行为和生活方式因素以及知识和态度因素。文中呈现了从对每一类因素的研究中所能学到的研究结果。讨论了对影响饮食行为的因素进行更统一、基于理论的研究的必要性，并介绍了美国农业部的饮食与健康知识调查，该数据集可用于开展此类研究。最后，论证了使用定性和定量研究方法来调查影响饮食行为方法的优势。
