Abstract Based on the multi-item Food Choice Questionnaire (FCQ) originally developed by Steptoe and colleagues (1995), the current study developed a single-item FCQ that provides an acceptable balance between practical needs and psychometric concerns. Studies 1 (N = 1851) and 2 (2a (N = 3290), 2b (N = 4723), 2c (N = 270)) showed that the single-item FCQ scale has good convergent and discriminant validity. Generally, the results showed the highest correlations with the related multi-item dimensions (>0.40). Study 2 refined the scale. Only the items for convenience (Study 2a), sensory appeal (Study 2b) and mood (Study 2c) needed to be revised (as Study 1 showed a correlation between the multi-item and the single-item below the threshold of 0.60). The results also showed comparable predictive validity. Both methods revealed similar association patterns between food motives and consumption behaviours (Fisher’s z tests revealed agreements of 86.2% for Study 1, 92.9% for Study 2a and 100% for Studies 2b and 2c). Study 3 (N = 6062) showed an example of the added value of a context-specific application for the single-item FCQ. Different motives were shown to be relevant across contexts, and the context-specific motives had additional explained variance beyond the general multi-item FCQ. Studies 2b and 3 also showed the performance of the single-item FCQ in an international context. In sum, the results indicate that the single-item FCQ can be used as a flexible and short substitute for the multi-item FCQ. The study also discusses the conditions that should be considered when using the single-item scale.

中文翻译：

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单项食物选择问卷的开发

摘要 基于最初由 Steptoe 及其同事 (1995) 开发的多项目食物选择问卷 (FCQ)，当前的研究开发了一个单项目 FCQ，在实际需求和心理测量问题之间提供了可接受的平衡。研究 1 (N = 1851) 和 2 (2a (N = 3290), 2b (N = 4723), 2c (N = 270)) 表明单项 FCQ 量表具有良好的收敛效度和判别效度。通常，结果显示与相关多项目维度的相关性最高 (>0.40)。研究 2 改进了量表。只有方便（研究 2a）、感官吸引力（研究 2b）和情绪（研究 2c）的项目需要修改（因为研究 1 显示多项目和单项目之间的相关性低于阈值 0.60）。结果还显示了可比的预测有效性。两种方法都揭示了食物动机和消费行为之间相似的关联模式（Fisher 的 z 检验显示，研究 1 的一致性为 86.2%，研究 2a 的一致性为 92.9%，研究 2b 和 2c 的一致性为 100%）。研究 3 (N = 6062) 展示了单个项目 FCQ 的上下文特定应用程序的附加值示例。不同的动机被证明与上下文相关，并且特定于上下文的动机具有超出一般多项目 FCQ 的额外解释差异。研究 2b 和 3 还显示了单项 FCQ 在国际背景下的表现。总之，结果表明单项 FCQ 可以用作多项 FCQ 的灵活且简短的替代品。该研究还讨论了使用单项量表时应考虑的条件。