Titlebook: Latent Trait and Latent Class Models; Rolf Langeheine,Jürgen Rost Book 1988 Springer Science+Business Media New York 1988 Computer.Design.

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Systematizing the Item Content in Test Designe basis of these data—selecting a set of apparently appropriate items. This procedure cannot be expected to yield instruments that will satisfy the assumptions of item response theory (for a recent overview of these the reader is referred to Hambleton & Swaminathan, 1985). The weak spot in this proc

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ational research institute for science education of the Federal Republic of Germany associated with the University of Kiel. The aim of this conference-to treat latent trait and latent class models under comparative points of view as well as under application aspects-was realized in many stimulating

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Comparison of Latent Structure Modelsst of the responses for 600 individuals on six questions each with two answer categories. In the second example we consider two dichotomous questions; both questions have been answered by 3398 schoolboys on two occasions.

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New Developments in Latent Class Theory the latent variable (most models aim at least at an interval scale) which often remains unused for subsequent interpretation of the data. In fact, we are often simply interested in certain groups or types of persons (see Rost, Chapter 7, this volume), that means that we need no more than a .. This is exactly what latent class models assume.

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