The growing tendency towards ‘urbanization’ is promoting an increase in resource consumption and waste generation, which requires proper waste separation management with active participation of the population. To this end, it is essential to know the personal modifiable factors that predict recycling. The primary aim of the present study is to develop and evaluate the psychometric properties of a Spanish language questionnaire designed to measure determinants of household waste separation for recycling purposes (ReDom Questionnaire). A cross-cultural adaptation, translation and psychometric evaluation was undertaken of an extant questionnaire originally developed in Swedish, and the resultant Spanish questionnaire was then subjected to reliability and validity testing. The questionnaire was developed using survey data from 759 respondents and 33 participants performed the retest to assess reliability. The resultant ‘ReDom Questionnaire’ is composed of three factors that draw on relevant elements of the COM-B framework: motivation (seven items), physical opportunity (three items) and social opportunity (three items). The accuracy of the scores is adequate both in terms of internal consistency (factorial weights >0.60; comparative fit index = 0.994; root mean square error of approximation = 0.049; root mean square residual (RMSR) = 0.053) and reliability (Pearson correlation >0.65; Cronbach’s alpha >0.75). In conclusion, the Spanish ReDom Questionnaire showed adequate psychometric properties and appears useful for assessing the determinants of household waste separation.

中文翻译：

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制定和验证用于评估预测家庭回收的决定因素的调查问卷（ReDom 调查问卷）

日益增长的“城市化”趋势正在促进资源消耗和废物产生的增加，这需要在民众的积极参与下进行适当的废物分类管理。为此，了解预测回收的个人可改变因素至关重要。本研究的主要目的是开发和评估西班牙语问卷的心理测量特性，该问卷旨在衡量家庭废物分类回收的决定因素（ReDom 问卷）。对最初用瑞典语开发的现有调查问卷进行了跨文化适应、翻译和心理测量评估，然后对所得的西班牙语调查问卷进行了信度和效度测试。该调查问卷是根据 759 名受访者的调查数据制定的，其中 33 名参与者进行了重新测试以评估可靠性。由此产生的“ReDom 问卷”由三个因素组成，这些因素借鉴了 COM-B 框架的相关要素：动机（七个项目）、身体机会（三个项目）和社交机会（三个项目）。分数的准确性在内部一致性（因子权重 > 0.60；比较拟合指数 = 0.994；近似均方根误差 = 0.049；均方根残差 (RMSR) = 0.053）和可靠性（皮尔逊相关性 > 0.65；克隆巴赫α>0.75）。总之，西班牙 ReDom 问卷显示出足够的心理测量特性，并且对于评估家庭垃圾分类的决定因素似乎很有用。