Provides an overview of the use of models in instructional design. Highlights include a definition of the term model; types of models, including conceptual, procedural, mathematical, and prescriptive; procedures for model development; classification of models in the literature; and alternative techniques for model validation. (Contains 38…

Notes that many psychological theories assume things belong in the same category because of their similarity. Recounts several arguments claiming, however, that similarity is an empty notion or is an insufficient quality upon which to base categorization. Concludes that, though these arguments have merit, similarity can be sufficiently constrained…

Examined the effects of model misspecification on the precision of decisions made using the sequential probability ratio test (SPRT) in computer testing. Simulation results show that the one-parameter logistic model produced more errors than the true model. (SLD)

Presents a method for handling educational data in which students belong to more than one unit at a given level, but there is missing information on the identification of the units to which students belong. The method, which involves setting up a cross-classified model, is illustrated with longitudinal data on students' progress in English. (SLD)

This monograph identifies, analyzes, and judges 22 evaluation approaches used in program evaluation. Two approaches, labeled psuedoevaluations, are politically oriented and often used to misrepresent a program's value. The remaining 20, judged legitimate, are categorized by their orientations, and rated for their value. (SLD)

Describes key aspects of an integrative framework that may help evaluators move beyond paradigm wars and the segmentation of evaluation practices. Proposes a scheme for categorizing evaluation methods with four inquiry modes, or clusters of methods: description, classification, causal analysis, and values inquiry. (Author/SLD)

Category number effects on rule-based and information-integration category learning were investigated. Category number affected accuracy and the distribution of best-fitting models in the rule-based task but had no effect on accuracy and little effect on the distribution of best-fining models in the information-integration task. In the 2 category…

Four experiments are presented that competitively test rule- and exemplar-based models of human categorization behavior. Participants classified stimuli that varied on a unidimensional axis into 2 categories. The stimuli did not consistently belong to a category; instead, they were probabilistically assigned. By manipulating these assignment…

SUSTAIN (Supervised and Unsupervised STratified Adaptive Incremental Network) is a model of how humans learn categories from examples. SUSTAIN initially assumes a simple category structure. If simple solutions prove inadequate and SUSTAIN is confronted with a surprising event (e.g., it is told that a bat is a mammal instead of a bird), SUSTAIN…

As course management systems (CMS) gain popularity in facilitating teaching. A forum is a key component to facilitate the interactions among students and teachers. Content analysis is the most popular way to study a discussion forum. But content analysis is a human labor intensity process; for example, the coding process relies heavily on manual…

Describes the Dewey Online Retrieval System (DORS), which was developed at the University of California, Los Angeles (UCLA), to experiment with classification-based search strategies in online catalogs. Classification structures in automated information retrieval are discussed; and specifications for a classification retrieval interface are…

Background: In recent years there has been increasing interest in creating diversity of educational provision to meet the full range of needs presented by learners. This is both a reflection, and a partial consequence, of the three central agendas for schooling in many countries--standards, choice and inclusion, and the growth in information…

Despite the large body of evidence on the benefits of sports, there continues to be growing concern regarding the overemphasis on sports, especially related to the social and educational development of blacks and other minority youth. This article introduces a conceptual framework or typology for analyzing the connection between sports…