A computer model designed to provide administrators faced with the problem of meeting demands from many quarters for the available space" with information about the effects of changes in space availability is described. (Author/AA)

Presents a model based on work by Schultz von Thun that helps to explain how to avoid misunderstandings in interpersonal communication. The model is then applied to interpersonal interactions in educational games, simulations, and workshops, and the insights it provides into how unnecessary and unintentional conflict may be avoided are discussed.…

A generalization of the usual random-effects model based on trimmed means is proposed. The resulting test of no differences among J randomly sampled groups has advantages in terms of Type I errors and can yield gains in power when distributions have heavy tails and outliers. (SLD)

Traces the roots of social trap situations and describes a parasitism-symbiosis model, showing that when each organism attempts to maximize its survival potential without regard for the other's, neither does as well as when they behave collectively. Discusses a model social trap situation, "Prisoner's Dilemma" ("PD") and a…

Presents a connectionist approach to modeling that relies on neural networks to control conventional simulations of multimedia clinical patient simulations. These neural networks simplify the medical expert's task of validating and maintaining patient simulations with diagnostic capabilities and serves as the basis of clinical decision support…

Describes examples of simulations and strategies for teaching about psychology that were developed in Indonesia and Malaysia to incorporate and address controversies related to cultural differences. A model that simulates the influence of a client's cultural context in counseling is explained, and developing stereotyped synthetic cultures is…

A model that can be used to show the arrangement of light and heavy chains, disulfide linkages, domains, and subclass variations in antibodies is given. It can be constructed and modified to illustrate Fab, F(ab')2, and Fc fragments, single domain and bifunctional antibodies, and labeling of antibodies. (Author)

Describes a model of instructional simulation design where designers create models in a system dynamics package and then transfer them into a general instructional authoring system for the addition of instructional support features. Topics include building versus using simulations; procedural versus conceptual simulations; and discovery versus…

An enterprise model, a computational model of knowledge about an enterprise, is a useful tool for integrated decision-making by e-commerce suppliers and customers. Sharable knowledge, once represented in an enterprise model, can be integrated by the modeled enterprise's e-commerce partners. Presents background on enterprise modeling, followed by…

Discusses the use of dynamic systems modeling in the field of school finance policy. Provides detailed description of the use of computer-based systems-modeling simulations to New Jersey school finance equity problems. (Contains 37 references.) (PKP)

Three developmental connectionist models simulate a purported shift from "featural" to "correlational" processing in infant categorization (models: Gureckis & Love, 2004/this issue; Shultz & Cohen, 2004/this issue; Westermann & Mareschal, 2004/this issue; empirical data: Cohen & Arthur, 2003; Younger, 1985; Younger & Cohen, 1986). In this article,…

Confirmatory factor analysis (CFA) is widely used for examining hypothesized relations among ordinal variables (e.g., Likert-type items). A theoretically appropriate method fits the CFA model to polychoric correlations using either weighted least squares (WLS) or robust WLS. Importantly, this approach assumes that a continuous, normal latent…

The study of measurement models in psychometrics by means of dimensionality reduction techniques such as Principal Components Analysis (PCA) is a very common practice. In recent times, an upsurge of interest in the study of artificial neural networks apt to computing a principal component extraction has been observed. Despite this interest, the…