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A New Interpretation of Stochastic Test Models
Hans Colonius
Journal:

Psychometrika / Volume 46 / Issue 2 / June 1981

Published online by Cambridge University Press:

01 January 2025, pp. 223-225
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A new look at latent trait models is proposed. The event of an item being solved by a person is related to the event that the momentary value of a person-specific random component is at least as large as the corresponding value of an item-specific random component. The Birnbaum logistic test model is shown to be generated by a bivariate extreme value distribution for the components. Some consequences of this interpretation are outlined.

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