ISSN 0439-755X
CN 11-1911/B

›› 2006, Vol. 38 ›› Issue (01): 135-144.

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Information of IRT Multilevel Item

Du-Wenjiu   

  1. College of Mathmatics and Finance Ecomomics ,Southwest University, Chongqing ,400715
  • Received:2004-12-18 Revised:1900-01-01 Published:2006-01-30 Online:2006-01-30
  • Contact: Du Wenjiu

Abstract: The objective was to give out calculate formula of multilevel item information function, and give some examples of multilevel item information. Results was: 1) at first discuss the sample sky of the test item by a example; 2) give out the probability function and information function of multilevel item; 3) discuss the application of multilevel item information function in practice by a few examples

Key words: IRT, Information, Multilevel Item

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