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Ramsay, James O.	1

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Multicategorical Spline Model for Item Response Theory.

Peer reviewed

Abrahamowicz, Michal; Ramsay, James O. – Psychometrika, 1992

A nonparametric multicategorical model for multiple-choice data is proposed as an extension of the binary spline model of J. O. Ramsay and M. Abrahamowicz (1989). Results of two Monte Carlo studies illustrate the model, which approximates probability functions by rational splines. (SLD)

Descriptors: Equations (Mathematics), Estimation (Mathematics), Graphs, Item Analysis