Silva Maria Fernanda Gomes da, Nobre Luciana Neri, Silva Edson da
Graduate Program in Nutrition Sciences, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil.
Department of Nutrition, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil.
Interact J Med Res. 2023 Sep 11;12:e49092. doi: 10.2196/49092.
Ultraprocessed foods (UPFs) contribute almost one-fifth of the calories consumed by the Brazilian population. This consumption has been favored by aspects such as the ease of acquisition and low cost of this food group. Initiatives focused on supporting and promoting healthy eating practices have been implemented. Among them, the availability of educational resources is an important strategy to maximize the effectiveness of these actions in the field of food and nutrition education (FNE).
This study aims to describe the development and validation process of animated videos based on the NOVA food classification for FNE actions aimed at Brazilian adults.
This methodological study was developed in the following 4 phases: planning, preproduction, production, and postproduction. In the planning phase, a literature review was con-ducted on the topic and to define the content to be covered. The design of the material was based on the cognitive theory of multimedia learning. In the preproduction phase, video scripts were developed and evaluated by 7 content specialists. In the production phase, videos were developed based on the assessed scripts and then assessed by 3 multimedia production specialists. In the postproduction phase, the videos were evaluated by 15 representatives of the target audience. All results obtained in the evaluation phases were analyzed using the content validity index (CVI).
We developed 3 animated videos covering the following themes: food processing levels, food categories according to processing levels, and UPFs and their impact on health. In the evaluation by the content specialists, the scripts of videos 1, 2, and 3 obtained CVIs at the scale level and average method equal to 0.96, 0.98, and 0.98, respectively. When the animated videos were evaluated by multimedia production specialists and representatives of the target audience, these indexes were equal to 1.0. These results attest to the videos' adequacy and quality in communicating the addressed content.
The animated videos developed and validated in this study proved to be adequate for their purpose. Thus, it is expected that they will be an important instrument for FNE actions aimed at an adult audience and for disseminating the Dietary Guidelines for the Brazilian Population.
超加工食品（UPFs）占巴西人口所摄入热量的近五分之一。这种消费因该食品类别易于获取和成本低廉等因素而受到青睐。已实施了旨在支持和促进健康饮食行为的举措。其中，提供教育资源是在食品与营养教育（FNE）领域最大化这些行动有效性的一项重要策略。
本研究旨在描述基于NOVA食品分类法为针对巴西成年人的FNE行动制作动画视频的开发与验证过程。
本方法学研究分以下四个阶段进行：规划、前期制作、制作和后期制作。在规划阶段，针对该主题进行了文献综述并确定要涵盖的内容。材料设计基于多媒体学习认知理论。在前期制作阶段，视频脚本由7名内容专家编写并评估。在制作阶段，根据评估后的脚本来制作视频，然后由3名多媒体制作专家进行评估。在后期制作阶段，由15名目标受众代表对视频进行评估。使用内容效度指数（CVI）对评估阶段获得的所有结果进行分析。
我们制作了3部动画视频，主题如下：食品加工水平、按加工水平划分的食品类别、以及超加工食品及其对健康的影响。在内容专家的评估中，视频1、2和3的脚本在量表水平和平均法下获得的CVI分别等于0.96、0.98和0.98。当动画视频由多媒体制作专家和目标受众代表评估时，这些指数均等于1.0。这些结果证明了视频在传达所涉内容方面的充分性和质量。
本研究中开发并验证的动画视频证明符合其目的。因此，预计它们将成为针对成年受众的FNE行动以及传播《巴西人口膳食指南》的重要工具。
