O'Neal Catherine Walker, Wickrama Kandauda K A S, Ralston Penny A, Ilich Jasminka Z, Harris Cynthia M, Coccia Catherine, Young-Clark Iris, Lemacks Jennifer
*Address correspondence to Catherine Walker O'Neal, Human Development and Family Studies, University of Georgia, 107 Family Science Center II, Athens, GA 30602. E-mail:
Gerontologist. 2014 Apr;54(2):211-20. doi: 10.1093/geront/gns155. Epub 2012 Dec 14.
The study applies the theory of planned behavior to explain the fruit and vegetable eating behaviors, a broad construct consisting of preparing, self-monitoring, and consuming fruits and vegetables, of older African Americans.
Structural equation modeling was used to examine the applicability of the theory of planned behavior with data from 211 older African American women and men (73% women, 26% men; median age range of 57-63 years) participating in a larger intervention study.
Attitudes about eating fruit and vegetables, subjective social norms, and perceived behavioral control were related to older African Americans' intentions to consume fruits and vegetables. Social norms and behavioral intentions were associated with fruit and vegetable eating behaviors. Perceived control did not moderate the influence of behavioral intentions on actual behavior.
Results indicated that the theory of planned behavior can be used to explain variation in older African Americans' eating behavior. This study also emphasizes the value of considering broader behavioral domains when employing the theory of planned behavior rather than focusing on specific behaviors. Furthermore, social service programs aimed at reducing the incidence of diseases commonly associated with poor eating behaviors among older African Americans must consider promoting not only fruit and vegetable consumption but also related behaviors including preparing and self-monitoring by eliminating structural, cognitive, and normative constraints.
本研究应用计划行为理论来解释老年非裔美国人的果蔬食用行为,这是一个宽泛的概念,包括准备、自我监测和食用果蔬。
采用结构方程模型,利用参与一项更大规模干预研究的211名老年非裔美国女性和男性(73%为女性,26%为男性;年龄中位数范围为57 - 63岁)的数据,检验计划行为理论的适用性。
对食用果蔬的态度、主观社会规范和感知行为控制与老年非裔美国人食用果蔬的意图相关。社会规范和行为意图与果蔬食用行为相关。感知控制并未调节行为意图对实际行为的影响。
结果表明,计划行为理论可用于解释老年非裔美国人饮食行为的差异。本研究还强调了在应用计划行为理论时考虑更广泛行为领域而非专注于特定行为的价值。此外,旨在降低老年非裔美国人中常见的与不良饮食行为相关疾病发病率的社会服务项目,必须考虑不仅要促进果蔬消费,还要通过消除结构、认知和规范限制来促进包括准备和自我监测在内的相关行为。