The impact of misspecification on the estimation, testing, and improvement of structural equation models was assessed via a population study in which a prototypical latent variable model was misspecified. Results provide insights into the maximum likelihood estimator versus a limited two-stage least squares estimator in LISREL. (TJH)

Describes computer strategies designed to emphasize teaching of an integrative view of cardiovascular physiology. They include: (1) a group of simulated laboratories which emphasize an explicit integration of ideas; (2) fault-finding exercises in which those ideas are put to use; and (3) a novel testing device for measuring student progress. (JN)

Provides examples of the use of computer simulation to help beginners develop a grasp for difficult statistical concepts. The implementation of this teaching methodology is discussed and analysis of simulation output through use of standard statistical software packages is illustrated. (Author/MBR)

Discusses the use of computer programs in science and mathematics. Provides examples of how computation offers a new means of describing and investigating scientific and mathematical systems and how computer simulation can be used to examine new kinds of models for natural phenomena. (JN)

Presents algorithms for the simulation and motion display of the three basic kinematic devices: (1) four bar linkages; (2) the slider crank; and (3) the inverted slider crank mechanisms. The algorithms were implemented on a Commodore-VIC 20 microcomputer system with 6500 bytes of available memory. (Author/JN)

Presents four probability problems, their simulations, and analyses. The first illustrates a discrete situation for which it is possible to list the sample space. The second and third are continuous--the number of possible outcomes is infinite. The last is discrete with a surprising continuous extension question which leads to l/e. (JN)

Reports survey results on statistical characteristics and adequacy of random number generators on microcomputers. Cycle size, seed, and operational time considerations, and statistical tests examining validity of generators are discussed. Evaluations of software for specific microcomputers are presented. Experiments which demonstrate dangers of…

Explains how school planners can use microcomputers to create electronic spreadsheets that reduce the time required to calculate educational specifications. (MLF)

Describes three computer programs which operate on Apple II+ microcomputers: (1) a menu-driven graph drawing program; (2) a simulation of the Millikan oil drop experiment; and (3) a program used to study the half-life of silver. (Instructions for obtaining the programs from the author are included.) (JN)

Presents a system that permits students to engage directly in the process of modelling and to learn some important lessons about models and classes of models. The system described currently runs on RML 380Z and 480Z, Apple II and IIe, and BBC model B microcomputers. (JN)

Describes an experiment from a physical chemistry course that consists of a computer simulation of throwing dice and the statistics involved. The experiment is designed to improve students' understanding of statistical evaluation of experimental data and to introduce programming techniques. (DDR)

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)

Explores economic aspects of digital journal production and delivery using Ithink Analyst, a modeling software package. Three models were developed and simulations were used to monitor the effect of variations in the values of key model elements. Discusses results that show staff costs and overhead are the most substantial costs for scholarly…

A formative small-group (n12) evaluation of a pair of opposed computer simulations modeling the thinking of historical ideologies (communist insurgency and counter-insurgency) suggests simulations had value in stimulating and modifying assessments of roles within real-world settings. Explores basic objective of having the simulation user develop a…

Demonstrates the use of simulation systems for studying diagnostic problem solving and presents results from two empirical studies in which undergraduates diagnosed faults that occurred in a computer-based, dynamic simulation. Discusses dual problem space search that includes generating and testing hypotheses; suggests implications for designing…