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Psychometrika2
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Bockenholt, Ingo1
Bockenholt, Ulf1
Heiser, Willem J.1
Zielman, Berrie1
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Analysis of Asymmetry by a Slide-Vector.
Peer reviewed Peer reviewed
Zielman, Berrie; Heiser, Willem J. – Psychometrika, 1993
An algorithm based on the majorization theory of J. de Leeuw and W. J. Heiser is presented for fitting the slide-vector model. It views the model as a constrained version of the unfolding model. A three-way variant is proposed, and two examples from market structure analysis are presented. (SLD)
Descriptors: Algorithms, Classification, Equations (Mathematics), Estimation (Mathematics)
Constrained Latent Class Analysis: Simultaneous Classification and Scaling of Discrete Choice Data.
Peer reviewed Peer reviewed
Bockenholt, Ulf; Bockenholt, Ingo – Psychometrika, 1991
A reparameterization of a latent class model is presented to classify and scale nomial and ordered categorical choice data simultaneously. The model extension represents a nonhomogeneous population as a mixture of homogeneous subpopulations. Simulated data and data from a magazine preference survey of 347 college students illustrate the model.…
Descriptors: Algorithms, Classification, College Students, Computer Simulation