计算机自适应测验研究——二值计分测验中估计被试的潜在特质水平

Research on computerized adaptive test——How to estimate the level of one's latent traits in two points recorded test

计算机自适应测验(CAT)在国内某些地方已经进入了实际应用领域,但也存在着一些问题,其中测验等值和计分是最繁琐最麻烦的部分,它严重制约着CAT的广泛应用。就计分问题而言,国内虽然已有人提出了较为合理的解决方法,但十分难懂,并且难以操作。就此问题提出一个较为直观的、可操作的、合理的计分模型。

In recent years, computerized adaptive test has developed rapidly. Many basic theories have been appreciated by many psychologists, but it is not perfect. Especially, the problem, how to estimate the level of one＇s latent traits with the Item Characteristic Function, has not been resolved. Estimating level of one＇s latent traits in two points recorded test is the simplest circumstance.