Self-regulation, self-efficacy, outcome expectations, and social support: Social cognitive theory and nutrition behavior
Self-regulation, self-efficacy, outcome expectations, and social support: Social cognitive theory and nutrition behavior
复制标题
DOI：
10.1007/bf02874555
复制
发表时间：
2007-01-01
影响因子：
3.8
通讯作者：
Wojcik, Janet R.
中科院分区：
文献类型：
--
作者：
Anderson, Eileen S.;Winett, Richard A.;Wojcik, Janet R.
背景。了解健康食品的需求和可及性并没有改善美国人口的整体饮食。社会认知理论（SCT）可以解释自我调节和自我效能等其他变量如何成为将更健康的营养融入美国生活方式的关键。目的：确定 SCT 如何在健康促进研究中解释成年人食品购买和消费的营养成分。方法：参与者是来自弗吉尼亚州西南部 14 个教堂的 712 名常去教堂的人（18% 是非裔美国人，66% 是女性，79% 超重或肥胖），他们参与了一项更大规模的健康促进研究的基线阶段。收集了与营养相关的社会支持、自我效能、结果期望和 SCT 自我调节组成部分以及食品购物收据和食物频率问卷中的脂肪、纤维、水果和蔬菜含量的数据。这些数据用于测试按照 SCT 规定订购的模型的拟合度，并进行结构方程分析。结果：SCT 提供了很好的拟合数据，解释了观察到的来自脂肪、纤维克/1000 kcals 和水果和蔬菜份量/1000 kcals 的卡路里百分比差异的 35%、52% 和 59%。参与者的年龄、性别、社会经济地位、社会支持、自我效能、负面结果期望和自我调节对其营养行为做出了重要贡献——与 SCT 一致的影响配置结论：这些结果表明自我调节行为在成年人更健康的食物选择中发挥着关键作用。有效获得家庭支持、提高与营养相关的自我效能以及克服负面结果期望的干预措施应该更成功地帮助成年人制定购买和食用更健康食品所必需的自我调节行为。
Background. Understanding the need for and accessibility to healthier foods have not improved the overall diets of the U.S. population. Social cognitive theory (SCT) may explain how other variables, such as self-regulation and self-efficacy, may be key to integrating healthier nutrition into U.S. lifestyles. Purpose: To determine how SCT accounts for the nutritional content of food purchases and consumption among adults in a health promotion study. Methods: Participants were 712 churchgoers (18% African American, 66% female, 79% overweight or obese) from 14 churches in southwestern Virginia participating in the baseline phase of a larger health promotion study. Data were collected on the nutrition related social support, self-efficacy, outcome expectations, and self-regulation components of SCT as well as on the fat, fiber, fruit, and vegetable content of food-shopping receipts and food frequency questionnaires. These data were used to test the fit of models ordered as prescribed by SCT and subjected to structural equation analysis. Results: SCT provided a good fit to the data explaining 35%, 52%, and 59% of observed variance in percent calories from fat, fiber g/1000 kcals and fruit and vegetable servings/1000kcals. Participants' age, gender, socioeconomic status, social support, self-efficacy, negative outcome expectations, and self-regulation made important contributions to their nutrition behavior-a configuration of influences consistent with SCT Conclusions: These results suggest a pivotal role for self-regulatory behavior in the healthier food choices of adults. Interventions effective at garnering family support, increasing nutrition related self-efficacy, and overcoming negative outcome expectations should be more successful at helping adults enact the self-regulatory behaviors essential to buying and eating healthier foods.