被験者の推定尺度値とテスト情報関数を利用した潜在特性尺度の等化法
1986 年 34 巻 2 号 p. 163-167
詳細
1986 年 34 巻 2 号 p. 163-167
The purpose of this study is to propose an equating method for equating two latent ability scales (scale θ* & θ) by using subjects' estimated ability scale values and test information functions. This method uses asymptotic property of maximum likelihood estimator's distribution. The practical application of this method is demonstrated by using a part of the test for word meaning comprehension (Shiba & Noguchi, 1982). As a result the computer simulation shows that this method has smaller error of estimate than Noguchi's (1983).
