[转载] Re: thoughts about CTT/IRT# Education - 教育学
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【 以下文字转载自 Psychology 讨论区,原文如下 】
发信人: meainpsy (BouncingBeta), 信区: Psychology
标 题: Re: thoughts about CTT/IRT
发信站: Unknown Space - 未名空间 (Fri Apr 9 14:52:02 2004) WWW-POST
Nice piece ah, I like this a lot.
Just add some comments:
1) The difference between CTT and IRT also can be detected from their basic
models/functions: since under CTT, X=T+E. What CTT takes care of is a summary
of observable scores. That is to say, CTT deals with the test as a packet of
items. While under IRT or also the fact
发信人: meainpsy (BouncingBeta), 信区: Psychology
标 题: Re: thoughts about CTT/IRT
发信站: Unknown Space - 未名空间 (Fri Apr 9 14:52:02 2004) WWW-POST
Nice piece ah, I like this a lot.
Just add some comments:
1) The difference between CTT and IRT also can be detected from their basic
models/functions: since under CTT, X=T+E. What CTT takes care of is a summary
of observable scores. That is to say, CTT deals with the test as a packet of
items. While under IRT or also the fact