Aureli Vittoria, Nardi Alessandra, Peluso Daniele, Scognamiglio Umberto, Rossi Laura
CREA Council for Agricultural Research and Economics-Research Centre for Food and Nutrition, 00178 Rome, Italy.
Department of Mathematics, University of Rome "Tor Vergata", 00133 Rome, Italy.
Foods. 2022 Aug 30;11(17):2629. doi: 10.3390/foods11172629.
This study aimed to describe the process of validation of a questionnaire assessing Italian consumers’ perception of food sustainability. The study has a multiphase design. Phase 1 consisted in translating and structuring the questionnaire. Phase 2 aimed at assessing the validity of the content by experts. Phase 3 consisted of a pilot study (n = 150) carried out to revise the questionnaire based on the reactions of consumers representing the target group of the assessment. The questionnaire showed adequate content validity for 11 out of 14 questions (>0.79) and S-CVI/Ave > 0.80. Cronbach’s alpha values ranged from 0.08 to 0.90. The construct with insufficient results (0.08) was changed because it failed to correlate with the rest of the questionnaire. The factor analysis permitted the identification of questions that needed improvement in terms of comprehensibility, elimination of redundancies, and repetitions. The validated questionnaire included 12 questions (71 response options); 3 sections were identified: food sustainability knowledge (4 questions-30 items); sources of proteins alternative to meat (3 questions-20 items); eating behaviors (5 questions-21 items). This study showed the importance of validation before the administration on a large scale of a questionnaire on a topic such as sustainability still lacking large support from consensus documents.
本研究旨在描述一份评估意大利消费者对食品可持续性认知的问卷的验证过程。该研究采用多阶段设计。第一阶段包括问卷的翻译和结构化。第二阶段旨在由专家评估内容效度。第三阶段是一项试点研究（n = 150），根据代表评估目标群体的消费者的反馈对问卷进行修订。该问卷显示，14个问题中有11个具有足够的内容效度（>0.79），且S-CVI/Ave > 0.80。克朗巴哈系数值在0.08至0.90之间。结果不足（0.08）的结构因与问卷其他部分无相关性而被修改。因子分析有助于识别在可理解性、消除冗余和重复方面需要改进的问题。经过验证的问卷包括12个问题（71个回答选项）；确定了3个部分：食品可持续性知识（4个问题 - 30个项目）；肉类替代蛋白质来源（3个问题 - 20个项目）；饮食行为（5个问题 - 21个项目）。本研究表明，对于像可持续性这样仍缺乏共识文件大力支持的主题的问卷，在大规模发放之前进行验证非常重要。
