[Rasch] CAT Questions

ranganaths ranganath.s at excelindia.com
Thu Jan 28 00:17:19 EST 2010



            I am new to the world of IRT. I have started with the basics of
it. I have below questions

1. I am wondering how the IRT in its computer application version called CAT
useful in accessing a student?.

2. What question types are used for CAT?

3. Which of the 3 models 1P, 2P and 3P is useful for a correct judgment of
the student's ability?

4. Which book is best suited to know the advanced form of IRT for the real
application of it?


            Thanks in advance.



Ranganath S

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