A maximin model for IRT-based test design with practical constraints

Willem J. van der Linden, Ellen Boekkooi-Timminga

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A maximin model for IRT-based test design is proposed. In the model only the relative shape of the target test information function is specified. It serves as a constraint subject to which a linear programming algorithm maximizes the information in the test. In the practice of test construction, several demands as linear constraints in the model. A worked example of a text construction problem with practical constraints is presented. The paper concludes with a discussion of some alternative models of test construction.
Original languageUndefined
Pages (from-to)237-247
Issue number2
Publication statusPublished - 1989


  • Linear Programming
  • IR-85856
  • Test Construction
  • Item Response Theory

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