CAJ | 학술논문

心理与教育测验中存在着被试作答异常现象（能力测验中的猜测现象和睡眠现象，人格测验中的非0下渐近线现象和非l上渐近线现象），会导致被试能力或人格特征的测量偏差。在能力测验中，研究者已提出了多种方法来纠正猜测现象和睡眠现象，这些方法往往需要调整或删除被试作答信息，而四参数模型不需要改变被试作答信息而能有效纠正被试能力高估或低估现象。在人格测验中存在着非0下渐近线和非1上渐近线现象，四参数模型能增强测验项目拟合性能，提高人格测验的准确性。
심리여교육측험중존재착피시작답이상현상（능력측험중적시측현상화수면현상，인격측험중적비0하점근선현상화비l상점근선현상），회도치피시능력혹인격특정적측량편차。재능력측험중，연구자이제출료다충방법래규정시측현상화수면현상，저사방법왕왕수요조정혹산제피시작답신식，이사삼수모형불수요개변피시작답신식이능유효규정피시능력고고혹저고현상。재인격측험중존재착비0하점근선화비1상점근선현상，사삼수모형능증강측험항목의합성능，제고인격측험적준학성。
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 difficult for the examinee need to be down-weighted or omitted. However, responses of the examinees need not to be changed with the four parameter logistic model in which c parameter reflects the guessing phenomena and rectifies the overestimation, γ parameter reflects the sleeping phenomena and rectifies the underestimation. In the personality testes, there exist some items which have non-zero lower asymeptote or non-one upper asymeptote. Four-parameter model could better fit the response data for the test and raise accuracy.