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

@inproceedings{Zieba2014TheII,
  title={The item information function in one and two-parameter logistic models – a comparison and use in the analysis of the results of school tests},
  author={Anna Zięba},
  year={2014}
}
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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