This study investigated the distributional properties of the standardized residual that is commonly used in the Rasch model calibration program to develop various indices of item and person fit. The power of the standardized residual to detect measurement disturbances is also addressed. (TJH)

Investigates the use of personal computer (PC) programs to help participants in simulation exercises transform their experiences into knowledge, skills, and attitudes. Six programs developed at Queensland Institute of Technology are described that involve operations management, strategic management, and macroeconomics. Examples of spreadsheets are…

This article presents a rationale for development and implementation of computer based interactive videotape (CBIV) in preservice teacher education; identifies advantages of CBIV simulations over other practice exercises; describes economical production procedures; discusses implications and importance of these simulations; and makes…

Compares two basic types of computer-based simulations--(1) variable-assignment simulations, and (2) diagnostic problem-solving simulations. Differences in the role of the computer, in the nature of the problem presented to the learner, and in the decision making required of the student are described. (eight references) (LRW)

A detailed description of a layered network model is provided, with computer simulations of key associative learning phenomena and predictions generated from the model. The model is compared to more conventional theories of learning to learn and configural learning. (SLD)

Reviews current research topics relating to computer simulations in German-speaking countries that emphasize problem solving and decision making. Topics discussed include the number of independent variables; studies that focus on personality characteristics; studies that focus on situational characteristics; and suggestions for further research…

Results are reported from a study designed to determine whether computer-based teaching simulation could influence short- and long-term skill acquisition in 61 preservice teachers. Two factors (task realism and clear, immediate post-teaching feedback) are identified as significant contributors to the simulation's training success. (IAH)

Hierarchical Bayes procedures for the two-parameter logistic item response model were compared for estimating item and ability parameters through two joint and two marginal Bayesian procedures. Marginal procedures yielded smaller root mean square differences for item and ability, but results for larger sample size and test length were similar.…

Describes a computer program that can model the equilibrium processes in the production of ammonia from hydrogen and nitrogen, sulfur trioxide from sulfur dioxide and oxygen, and the nitrogen dioxide-dinitrogen tetroxide equilibrium. Provides information about downloading the program ChemEquilibrium from the World Wide Web. (JRH)

Examines the advantages of presenting case study information via multimedia. Highlights identify advantages of using multimedia, including browsability, comprehensiveness, currency, flexibility, linkage, simplicity, precision, closeness to problem, and cost savings. Potential problems are also discussed. (Contains eight references.) (SLW)

Computer simulations indicate that the correlation between baseline and change, by itself, does not invalidate the use of gain scores to measure change, but when the negative correlation is accompanied by decrease in variance from pretest to posttest, covariance is a superior measure of change. (SLD)

Examines four working steps from an empirical model where an expert abstractor discovers what a paper is about and drafts a topic sentence; a simulation system is developed using this model. Discusses knowledge processing activities of professional summarizing. Results indicate that a small simulation model of professional summarizing is feasible.…

Discussion of the changing economic environment and the resulting restructuring of society focuses on changes in education needs. Highlights include evaluative simulations, interactive distance learning in the home and in the workplace using interactive media, and a list of World Wide Web information sources for distance education. (LRW)

Crossroads to the World is an interdisciplinary, teacher-developed, technology-based project involving constructive learning that can be adapted to almost any social-studies curriculum. Beginning with literary models (like Whitman's "Song of the Open Road"), students use simulation software to generate ideas for their own simulated world…

Robustness of the school-level item response theoretic (IRT) model to violations of distributional assumptions was studied in a computer simulation. In situations where school-level precision might be acceptable for real school comparisons, expected a posteriori estimates of school ability were robust over a range of violations and conditions.…