Abstract. Several guidelines on how to construct questionnaire items exist, even though the literature lacks empirical evidence for their effectiveness. To investigate whether the addition of negat...

中文翻译：

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不太强大

摘要。尽管文献缺乏关于其有效性的经验证据，但仍存在一些有关如何构造问卷项目的指南。调查是否添加了负离子...