How success in a task depends on the skills level: two uncertainty-based justifications of a semi-heuristic Rasch model

نویسندگان

  • Joe Lorkowski
  • Olga Kosheleva
  • Vladik Kreinovich
چکیده

The more skills a student acquires, the more successful this student is with the corresponding tasks. Empirical data shows that the success in a task grows as a logistic function of skills; this dependence is known as the Rasch model. In this paper, we provide two uncertainty-based justifications for this model: the first justification provides a simple fuzzy-based intuitive explanation for this model, while the second – more complex one – explains the exact quantitative behavior of the corresponding dependence.

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تاریخ انتشار 2015