4PM Rectifying the Overestimation and Underestimation in the Tests
四参数模型对被试作答异常现象的拟合与纠正

In the educational and psychological tests,there exist guessing phenomena that the low-ability examinee makes correct answers on the difficult items,and the sleeping phenomena that the high-ability examinee makes wrong answers on easy items,which would lead to errors.Many researches have been done on the issue of these phenomena,and various methods have been proposed to rectify the overestimation and underestimation.Usually when these methods are used,these responses on items that appear to be too easy or d...