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首页> 外文期刊>BMC Medical Education >Rarely selected distractors in high stakes medical multiple-choice examinations and their recognition by item authors: a simulation and survey
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Rarely selected distractors in high stakes medical multiple-choice examinations and their recognition by item authors: a simulation and survey

机译：很少在高风险医学多项选择检查中选择干扰因素，并得到项目作者的认可：模拟和调查

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Background Many medical exams use 5 options for multiple choice questions (MCQs), although the literature suggests that 3 options are optimal. Previous studies on this topic have often been based on non-medical examinations, so we sought to analyse rarely selected, 'non-functional' distractors (NF-D) in high stakes medical examinations, and their detection by item authors as well as psychometric changes resulting from a reduction in the number of options. Methods Based on Swiss Federal MCQ examinations from 2005-2007, the frequency of NF-D (selected by Results About 70% of the 5-option-items had at least 1 NF-D selected by Conclusions Based on item statistics and/or an expert panel's recommendation, the choice of a varying number of 3-4 (or partly 2) plausible distractors could be performed without marked deteriorations in psychometric characteristics.
机译：背景技术尽管文献表明3种选择是最佳选择，但许多医学考试对选择题（MCQ）使用5种选择。以前有关该主题的研究通常基于非医学检查，因此我们试图分析高风险医学检查中很少选择的“非功能性”干扰物（NF-D），以及由项目作者进行检测以及进行心理计量选件数量减少导致的更改。方法根据2005-2007年瑞士联邦MCQ考试的结果，选择NF-D的频率（由结果选择）大约70％的5个选项由结论得出的至少1个NF-D基于项目统计和/或专家小组的建议是，可以选择3-4种（或部分2种）合理的干扰物，而不会明显降低心理测量特征。

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