Bos Colin, van der Lans Ivo A, van Rijnsoever Frank J, van Trijp Hans Cm
1Marketing and Consumer Behaviour Group,Wageningen University,Hollandseweg 1 (5019),6706 KN Wageningen,The Netherlands.
2Innovation Studies,Copernicus Institute of Sustainable Development,Utrecht University,Utrecht,The Netherlands.
Public Health Nutr. 2016 Jun;19(9):1584-97. doi: 10.1017/S1368980015002517. Epub 2015 Sep 2.
Employing Rothschild's Motivation-Opportunity-Ability framework, the present study examines the extent to which heterogeneity in barriers regarding the motivation, the perceived opportunity and the perceived ability to choose low-calorie over high-calorie snacks is associated with the proportion of low-calorie snack choices in real life. Furthermore, the study investigates which dominant barrier profiles can be discerned.
Data were obtained from a survey about participants' motivation, opportunity and ability to choose low-calorie over high-calorie snacks and an FFQ that measured habitual consumption of snack foods and beverages. Data were analysed using R packages lavaan and NbClust, and IBM SPSS Statistics.
A representative sample (n 1318) of the Dutch population based on gender (686 women), age and education level.
For both snack foods and beverages, motivation to choose low-calorie over high-calorie snacks was associated strongest with proportions of low-calorie choices. The perceived ability and perceived opportunity were also associated with proportions of low-calorie choices, albeit to a lesser extent. Furthermore, three dominant profiles of barriers were identified: the no-barrier profile, the lack-of-opportunity profile and the lack-of-motivation profile. These profiles differed significantly on proportions of low-calorie snack choices, daily meal consumption and sociodemographic characteristics.
Heterogeneity in barriers regarding the motivation, the perceived opportunity and the perceived ability to choose low-calorie over high-calorie snacks is associated with the proportion of low-calorie snack choices in real life. By identifying and appreciating heterogeneity in barriers, the present study provides further incentives for the tailoring of intervention strategies.
本研究采用罗斯柴尔德的动机-机会-能力框架，考察在选择低热量零食而非高热量零食时，动机、感知到的机会和感知到的能力方面的障碍异质性与现实生活中低热量零食选择比例之间的关联程度。此外，该研究还调查了可以识别出哪些主要的障碍类型。
数据来自一项关于参与者选择低热量零食而非高热量零食的动机、机会和能力的调查，以及一份测量零食和饮料习惯性消费情况的食物频率问卷（FFQ）。使用R软件包lavaan和NbClust以及IBM SPSS Statistics对数据进行分析。
基于性别（686名女性）、年龄和教育水平选取的荷兰人口代表性样本（n = 1318）。
对于零食和饮料而言，选择低热量零食而非高热量零食的动机与低热量选择比例的关联最为紧密。感知到的能力和感知到的机会也与低热量选择比例相关，尽管程度较小。此外，还识别出了三种主要的障碍类型：无障碍类型、缺乏机会类型和缺乏动机类型。这些类型在低热量零食选择比例、每日餐食消费和社会人口统计学特征方面存在显著差异。
在选择低热量零食而非高热量零食时，动机、感知到的机会和感知到的能力方面的障碍异质性与现实生活中低热量零食选择比例相关。通过识别和认识障碍方面的异质性，本研究为定制干预策略提供了进一步的动力。
