试卷难度对作弊甄别方法临界值的影响

The Effect of Test Difficulty to the Critical Value of Cheating Detection Methods

目前,在大规模考试结束后,应用作弊甄别方法对考生答卷进行作答雷同分析已经成为一项必不可少的工作。本研究提出一种全新的判定甄别方法临界值的思路,并选取试卷难度这个最主要的评价指标,分析试卷难度变化时,作弊甄别方法的临界值的变化情况,从而更准确更高效地进行作弊甄别工作。

At present, after large scale tests, it is indispensable to apply cheating detection to analyze examinee＇ s answers. The research here present a new idea to determine the critical value of cheating detection methods.In order to detect cheating more efficiently and more precisely, we choose the level of test difficulty as the main assessment criteria to analyze the how the thresholds of cheating detection methods vary with it.