Describes the construction of a knowledge representation from the identification of the problem (nephrotic syndrome) to a running computer simulation of causal reasoning to provide a vertical slice of the construction of a cognitive model. Interactions between textbook knowledge, observations of human experts, and computational requirements are…

The Global University System (GUS) [Utsumi, et al, 2003] is a worldwide initiative to create advanced telecommunications infrastructure for access to educational resources across national and cultural boundaries for global peace. GUS aims to create a worldwide consortium of universities to provide the underdeveloped world with access to 21st…

This policy brief describes the components of a computer model to compare different financing approaches for universal early care and education programs as developed by the Financing Universal Early Care and Education (ECE) for America's Children Project. The brief also discusses lessons learned from analyzing key features of existing…

Describes the development of a method for the evaluation and comparison of interactive information retrieval systems, which are based on the concept of a simulated work-task situation and the involvement of real end users. Highlights include real and simulated information needs; relevance assessments; and the dynamic nature of information needs.…

Analyzes how 20 groups of management specialists in charge of a computer-simulated company behaved when confronted with complex problems that arose. Difficulties stemmed from an incorrect use of available knowledge, a tendency to avoid risks and reduce uncertainty, and a motivational process which sheltered the subjective sense of competence. (AEF)

The effectiveness of two iterative methods of item response theory (IRT) item bias detection was examined in a simulation study. A modified form of the iterative item parameter linking method of F. Drasgow and an adaptation of the test purification procedure of F. M. Lord were compared. (SLD)

Describes a program developed by the Department of Teaching and Learning at Peabody College (Vanderbilt University) which uses technology to develop preservice teachers' decision making skills. The program examined problems that student teachers encountered in their practice teaching experiences and developed a series of learning experiences using…

Functional and structural relationship alternatives to the standard "F"-test for analysis of covariance (ANCOVA) are discussed for cases when the covariate is measured with error. An approximate statistical test based on the functional relationship approach is preferred on the basis of Monte Carlo simulation results. (SLD)

Some examinees' test-taking behavior may be so idiosyncratic that their test scores are not comparable to those of more typical examinees. A new theoretical approach to appropriateness measurement is proposed that specifies a likelihood ratio test and an efficient computer algorithm for computing the test statistic. (TJH)

Examines the degree of fidelity required of a computer simulation to ensure maximum transfer of training. Simulators used in the military services for training pilots are described; relationships between fidelity, transfer, and cost are explored; and feedback to the student and measures of training effectiveness are discussed. (nine references)…

A study of 61 high school biology students found that Interactive Video Disk (IVD) simulation was as effective as actual frog dissection in promoting student learning of frog anatomy and dissection procedures. When used as a preparation for dissection, IVD simulation helped students perform better dissections and learn more from doing dissections.…

The impact of capitalizing on chance in item selection on the accuracy of test information functions was studied through simulation, focusing on examinee sample size in item calibration and the ratio of item bank size to test length. (SLD)

Discusses situated learning and virtual reality, focusing on the pedagogical aspects of the technology and its importance in achieving a learning environment which challenges and supports effective learning. (AEF)

Reviews the literature on computer simulation modeling for library management and examines whether simulation is underutilized because the models are too complex and mathematical. Other problems with implementation are considered, including incomplete problem definition, lack of a conceptual framework, system constraints, lack of interaction…

A methodological framework is provided for quantitatively integrating Type I error rates and power values for Monte Carlo studies. An example is given using Monte Carlo studies of a test of equality of variances, and the importance of relating metanalytic results to exact statistical theory is emphasized. (SLD)