A model is introduced for the simulation of Boltzmann-like binary interactions which may be extended to exhibit the effect of angular dependence in the scattering cross section and other dynamical aspects of two-body interactions. (Author/SK)

Presents a computer simulation testing semantic networks and spreading activation models of human memory. Describes how a sentence is encoded by building a working memory structure from its words and from semantic memory concepts related to its meaning. Retrieval processes use cue words or sentences to locate working memory structures. (Author/MES)

Describes the rationale, format and procedures, unique features, and educational and instructional aims of "The Young Chemist," a simulation game model for the methodology of logical process to be used as a teaching device within the traditional high school chemistry curriculum. (Author/CMV)

Discusses general structure and specification guidelines for interactive simulation/games, which include development of a computer simulation model, embedding the model in an interactive simulation, and embedding the simulation in a game. An outline following these guidelines is presented for the development of DENTIST, a dental health care…

Models of global energy demand, a lower-growth-rate model developed at Case Western Reserve University and the H5 model of the Conservation Committee of the World Energy Conference, assess the features of decentralized and centralized electricity generation in the years 2000 and 2025. (BT)

The design and use of an instrument simulator is described. Used for student laboratory experiments illustrating the use of mini-computers, it can provide, at very low cost, a repetitive, repeatable output to duplicate the readout of various instruments such as electrochemical experiments, mass spectrometers, pulsed magnetic experiments,…

A selection model for meta-analysis is proposed that models the selection process and corrects for the consequences of selection by publication on estimates of the mean and variance of the effect parameters. Simulation studies show that the model substantially reduces bias when the model specification is correct. (SLD)

Developed an item response model for characterizing test-compromise that enables the estimation of item preview and score-gain distributions. In the approach, models parameters and posterior distributions are estimated by Markov Chain Monte Carlo procedures. Simulation study results suggest that when at least some test items are known to be…

Examines the implications of connectionist models of cognition for second-language theory, in which all knowledge is embodied in a network of simple processing units joined by connections that are strengthened or weakened in response to regularities in input patterns. A connectionist framework is proposed within which hypotheses about…

To teach the modern concepts of cavity preparation, it is desirable to have a supply of natural teeth exhibiting suitable carious lesions. This paper describes a simple method for producing consistent artificial lesions in extracted natural teeth. (MLW)

This document describes the construction/simulation software called Stella which can be used in the investigation of dynamic causal models. Topics considered are its built-in perspective of system dynamics and capabilities, its potential drawbacks, and its cognitive implications for educational applications. (JJK)

This report describes a dental model technique used at the Academy of Health Sciences, Fort Sam Houston, Texas. The technique uses Dentoform which provides a realistic set of Ivorine plastic teeth set in rubber "gingivae" upon which operative dentistry, prosthodontics, and limited periodontal scaling can be practiced. (GLR)

Examines reasons for cataloging backlogs in libraries and describes a preliminary theory of backlog dynamics. Formulas for predicting backlogs are discussed, backlog models are explained, the use of computer simulation software to form models is described, and further research is suggested. (five references) (LRW)

The importance and value of modeling in physics teaching is discussed from two different points of view: to teach physics as it is nowadays practiced; and to take into account research into cognitive science and learning. Two kinds of modeling software are briefly described. (40 references) (Author)

Describes QMaPS (Qualitative Matching and Prediction system for Simulations), a qualitative reasoning system designed to function as a module in exploratory simulation learning environments. Highlights include a hierarchical organization of variables; multilevel relation typology; modeling of physical and conceptual domain structures; an…