Inference is considered for the marginal distribution of "X" when ("X", "Y") has a truncated bivariate normal distribution. The "Y" variable is truncated, but only the "X" values are observed. A sample of 87 Otis test scores is shown to be well described by this model. (SLD)

Describes the structure and operations of a computer simulation model used in Papua New Guinea, developed with technical assistance from UNESCO. Notes that model establishes baseline data on student enrollments, teacher posts, and costs of education, and can be used to simulate policies under consideration and provide output on student flows,…

Describes "Glass-box Interpreter" a low-level program visualization tool called Bradman designed to provide a conceptual model of C program execution for novice programmers and makes visible aspects of the programming process normally hidden from the user. Presents an experiment that tests the efficacy of Bradman, and provides…

Discusses the evaluation of search engines and uses neural networks in stochastic simulation of the number of rejected Web pages per search query. Topics include the iterative radial basis functions (RBF) neural network; precision; response time; coverage; Boolean logic; regression models; crawling algorithms; and implications for search engine…

Reports on a study that examined which of the available simulators could be used by the U.S. Army Armor School (Fort Knox, Kentucky) for instructional purposes and determined actual usage of large-scale simulation networking (SIMNET) by examining usage logs maintained by SIMNET operators. The appendices list Armor School courses and simulators.…

Develops a new model for a process that generates Lotka's Law. Topics include measuring scientific productivity through the number of publications; rate of production; career duration; randomness; Poisson distribution; computer simulations; goodness-of-fit; theoretical support for the model; and future research. (Author/LRW)

Reports the results of research on effects of detailed feedback on problem solving within a computer-based simulation. Participants were 54 undergraduate students. Results indicated highest performance was associated with feedback based on an expert model supplemented with provided textual commentary, suggesting that under some circumstances…

Baroma (Balance of Rotating Machinery), the Web-based educational engineering interactive software for teaching/learning combines didactical and software ergonomical approaches. The software in tutorial form simulates a problem using Visual Interactive Simulation in graphic display, and animation is brought about through graphical user interface…

Advocates using computer-simulated learning environments to allow students to develop their own problem-solving rules when it comes to collecting and evaluating scientific data. Describes the use of "Identibacter interactus" to simulate identification of an unknown microorganism. (WRM)

Describes a study of the effectiveness of computer-simulation programs in enhancing biology students' familiarity with ecological modeling and concepts. Finds that computer simulations improved student comprehension of ecological processes expressed in mathematical form, but did not allow a full understanding of ecological concepts. Contains 28…

Describes the human patient simulator and discusses the value of this technology for undergraduate and graduate nursing education, research, and evaluation. Highlights include an example of the use of the simulator; critical incident nursing management as a framework for instruction using the simulator; and administrative considerations. (LRW)

Teachers have always dreamed of taking their students to visit faraway places, or traveling with them to bygone days. Now, through the power of technology, students can experience "virtually" other times and places through "distance learning." The Internet, satellite communications, television, and telephones can provide access to some exceptional…

The authors provide a version of a double-auction market simulation designed for classes too large for most computer labs to accommodate in one sitting. Instead, students play the game from remote computers, wherever they may be and at any time during a given time period specified by the instructor. When the window of time expires, students can…

Roberto Corrada's labor law course at the University of Denver embodies both growing interest in new approaches to teaching and learning and some of the latest uses of educational technology in the scholarship of teaching. In that course, Corrada engages his law school students, many of whom have had little experience in union work settings, in a…

Film and media courses appear well placed to exploit technology convergence in exposing students both to practical skills and to theoretical concepts. For the University of Cape Town's (UCT) large film and media studies courses, it is impractical simply to use the technology of professionals as this would typically be too expensive to purchase and…