논문형 고사 평가에서 평가치 조정과 평가원의 신뢰도 향상에 유효한 CDM 모형의 응용

Application of the Categorical Data Model for Enhanching the Reliability of the Raters' Ratings and Score Adjustment of the Essay Type Test

$\sub$e/$\^$2/, that were results from those three sources of such imperfection. Especially to eliminate the differences in severity among many raters the randomization procedure of raters sample was very effective in enhancing the reliability of ratings with comparatively small groups of examinees and raters. And we also introduced the new rating methods, i.e. the 2-step diagnostic procedures to check the sizes of the reliability stability of raters and the sore adjustment method to enumerate the optimal mean values in rating the examinees.