Pawlak Roman, Malinauskas Brenda
Department of Nutrition and Dietetics, East Carolina University, Greenville, North Carolina 27858-4353, USA.
J Nutr Educ Behav. 2008 Nov-Dec;40(6):392-8. doi: 10.1016/j.jneb.2007.11.002.
To identify beliefs about eating 2.5 cups of vegetables and to assess how well these beliefs predict intention to eat them.
A survey based on the Theory of Planned Behavior.
Two public high schools in 2 counties in eastern North Carolina.
157 ninth-grade students (mean age = 14.71 years [SD = 0.82]).
Regression analysis was performed to assess how well the variables of the Theory of Planned Behavior predicted behavioral intention to eat 2.5 cups of vegetables.
Attitude, subjective norms, and perceived behavioral control predicted 77.2% of variance of intention to eat 2.5 cups of vegetables (F [3, 154] = 178.05, P < .001). Attitude was the strongest predictor (beta = 0.434, P < .001), followed by subjective norms (beta = 0.372, P < .001) and perceived behavioral control (beta = 0.159, P < .021).
Factors such as impact of parents and peers, availability of vegetables at home and in school, and making sure that vegetables offered to teens are tasty are important in increasing their intention to eat the recommended amount of vegetables. These factors could help education campaigns targeted toward teens be more successful.
确定关于食用2.5杯蔬菜的信念，并评估这些信念对食用蔬菜意愿的预测程度。
基于计划行为理论的一项调查。
北卡罗来纳州东部两个县的两所公立高中。
157名九年级学生（平均年龄 = 14.71岁[标准差 = 0.82]）。
进行回归分析，以评估计划行为理论的变量对食用2.5杯蔬菜行为意愿的预测程度。
态度、主观规范和感知行为控制预测了食用2.5杯蔬菜意愿77.2%的方差（F[3, 154] = 178.05，P < .001）。态度是最强的预测因素（β = 0.434，P < .001），其次是主观规范（β = 0.372，P < .001）和感知行为控制（β = 0.159，P < .021）。
父母和同伴的影响、家中和学校蔬菜的可获得性以及确保提供给青少年的蔬菜美味等因素，对于提高他们食用推荐量蔬菜的意愿很重要。这些因素有助于针对青少年的教育活动取得更大成功。
