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  1. 1 Didactics of Mathematics

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  1. 1 2013

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  1. 1 Zięba A.

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The item information function in one and two-parameter logistic models – a comparison and use in the analysis of the results of school tests

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Zięba A.
Didactics of Mathematics
|
2013
|
issue 10(14)
87-96
EN
This paper presents a very important problem in the theory of IRT, namely the Item Information Function. It presents the similarities and differences in the approach to this problem for the one-parameter Rasch model and the two-parameter Birnbaum model. All kinds of relationships are presented in graphs. Additionally, special attention is paid to the interpretation of these graphs and the results.
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