item sampling
... item response theory 项目反应理论 item sampling 题目抽样 item scaling 量表试题定位 ...
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在山东省范围内抽样,采用量的分析和质的分析相结合的方法对不太恰当的题目进行适当删减。
Samples have been collected in Shandong Province and some items have been deleted by quantitative and qualitative approaches.
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