Examines automated speech technologies (AST) and describes uses in education and training. Topics include AST in foreign language instruction and translation; AST in medical education, including economic considerations; and needed research and development for AST in education and training, including voice recognition technology and advanced…

Describes a study that examined the effects of goal setting on undergraduate students competing in a computerized business simulation. Group cohesiveness is discussed, treatments for the experimental and control groups are described, perceived team success is measured, and team simulation performance is evaluated. (30 references) (LRW)

Three correlation matrices (PEARSON, POLYCHORIC, and TOBIT) were used to obtain reliability estimates on ordered polytomous variable models. A Monte Carlo study with different levels of variable asymmetry and 400 sample correlation matrices demonstrated that the PEARSON matrix did not perform as well as did the other 2 matrices. (SLD)

A probabilistic item response theory (IRT) model is developed for pair-comparison design in which the unfolding principle governing the choice process uses a discriminant process analogous to Thurstone's Law of Comparative Judgment. A simulation study demonstrates the feasibility of estimation, and two examples illustrate the implications for…

A procedure--based on item response theory--for testing the hypothesis of unidimensionality of the latent space is proposed. Use of the procedure is supported by an asymptotic theory and a Monte Carlo simulation study. The procedure tests for unidimensionality in test construction and/or compares two tests. (SLD)

Discusses the contexts where virtual reality (VR) training environments might be appropriate; examines the advantages and disadvantages of VR as a training technology; and presents a case study of a VR training environment used at the NASA Johnson Space Center in preparation for the repair of the Hubble Space Telescope. (AEF)

A recent study compared hands-on scientific inquiry assessment to assessments involving lab notebooks, computer simulations, short-answer paper-and-pencil problems, and multiple-choice questions. Creating high quality performance assessments is a costly, time-consuming process requiring considerable scientific and technological know-how. Improved…

Many assert that the use of animals for dissections in the secondary and undergraduate class is unnecessary. This article describes a study conducted to compare the attitudes and achievement of students who use interactive methods instead of conventional dissection. (ZWH)

Several methods for determining a passing score on an examination from individual raters' estimates of minimal pass levels were compared through simulation. The methods used differed in the weighting estimates for each item received in the aggregation process. Reasons why the simplest procedure is most preferred are discussed. (SLD)

A small-scale simulation investigated the impact of making essay topics available to test takers before the test. Results with 11 college students reveal little effect of the prepublished topic. Implications for teacher licensure examinations are discussed with reference to the Praxis Series: Professional Assessments for Beginning Teachers being…

The effects of priors and amount of bias in the Bayesian approach to the estimation problem in item response models are examined using simulation studies. Different specifications of prior information have only modest effects on Bayesian estimates, which are less biased than joint maximum likelihood estimates for small samples. (TJH)

Explains virtual reality as a computer-synthesized three-dimensional environment (cyberspace) in which human participants, appropriately interfaced, appear to be enveloped. Cyberspace in science fiction is discussed; contributions of aerospace and military simulation trainers, digital imaging, and motion picture special effects are described; and…

A detailed investigation is provided of Stout's statistical procedure (the computer program DIMTEST) for testing the hypothesis that an essentially unidimensional latent trait model fits observed binary item response data from a psychological test. Three refinements achieve greater power. The revised approach is validated using real data sets.…

Discussion of integrating computer technology with the case-based approach for teaching school leadership focuses on an overview of project activities and initial findings of one funded multimedia research and development effort, the Administrator Case Simulation Project, to design, develop, and use CD-ROM case simulations as reflective thinking…

Discusses the use of constructive modeling and virtual simulation in team training; describes a military application of constructive modeling, including technology issues and communication protocols; considers possible improvements; and discusses applications in team-learning environments other than military, including industry and education. (LRW)