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On the Unidentifiability of the Fixed-Effects 3PL Model

Ernesto San Martín1, Jorge González, Francis Tuerlinckx

  • 1Faculty of Mathematics, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile, esanmart@mat.puc.cl.

Psychometrika
|February 1, 2014
PubMed

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