Three heuristic methods of assessing the dimensionality of binary item pools were evaluated in a Monte Carlo investigation. The indices were based on (1) the local independence of unidimensional tests; (2) patterns of second-factor loadings derived from simplex theory; and (3) the shape of the curve of successive eigenvalues. (SLD)

Reviews the development and the principal elements of total quality management (TQM) and demonstrates methods for introducing some of the key elements into a strategy-oriented business simulation game that can be used to teach future managers. Topics discussed include increased focus on the customer; continuous improvement; and competitive…

Fourth graders were presented decision-making tasks that required hands-on manipulation of objects or manipulation of images using a microcomputer. Computer manipulations used (1) keyboard input; (2) keyboard input and the presentation of reference objects; or (3) light pen input. Subjects required more time to respond to the task when using…

Investigated model for reducing time for administration of Myers-Briggs Type Indicator (MBTI) using real-data simulation of Bayesian scaling in computerized adaptive administration. Findings from simulation study using data from 127 undergraduates are strongly supportive of use of Bayesian scaled computerized adaptive administration of MBTI.…

This study examined the effectiveness and efficiency of a three-dimensional virtual-reality simulation model designed to train kindergarten teachers in the understanding of kindergarten children's needs and perceptions. Results of statistical analysis indicated that the virtual-reality simulation was more effective than a workshop method.…

Examines effects of deductive versus inductive learning strategies on performance, comprehension monitoring, and response confidence, using combinations of computer-based tutorials and simulations of Newton's laws of motion. Participants were 353 fifth graders. Deductive learning was defined as the tutorial combined with the structured or…

Shows how some of the simple ideas in complexity can be investigated using a spreadsheet and a macro written in Visual Basic. Shows how the sandpile model of Bak, Chao, and Wiesenfeld can be simulated and animated. The model produces results that cannot easily be predicted from its properties. (Author/MM)

This study investigated how individuals' construction of explanations--a way of ascertaining how well an individual understands a concept--develops from an interactive simulation. Specifically, the purpose was to investigate the effect of interactive computer simulations or science textbook assignments on the nature and quality of postgraduate…

The emergence of human communication systems is typically investigated via 2 approaches with complementary strengths and weaknesses: naturalistic studies and computer simulations. This study was conducted with a method that combines these approaches. Pairs of participants played video games requiring communication. Members of a pair were…

The "Mozart effect" refers to an increase in spatial reasoning performance following exposure to music composed by Mozart. Empirical tests of the effect have resulted in an inconsistent pattern of findings with some studies producing the effect and others failing to do so. The majority of the investigations have relied on paper-and-pencil tests.…

This study examined the effect of scaffolding students who learned by designing assignments for a computer simulation on the physics topic of alternating circuits. We compared the students' assignments and the knowledge acquired in a scaffolded group (N = 23) and a non-scaffolded group (N = 19). The scaffold consisted of a Design Sheet that guided…

The primary purpose of this research is to examine the impact of estimation methods, actual latent trait distributions, and item pool characteristics on the performance of a simulated computerized adaptive testing (CAT) system. In this study, three estimation procedures are compared for accuracy of estimation: maximum likelihood estimation (MLE),…

Documenting collaborative knowledge construction is critical for research in computer-supported collaborative learning. Because this is a multifaceted phenomenon, mixed methods are necessary to construct a good understanding of collaborative interactions, otherwise there is a risk of being overly reductionistic. In this paper I use quantitative…

Unintentional injuries are a leading cause of death and disability for children. Those with developmental disabilities, including children affected by prenatal alcohol exposure, are at highest risk for injuries. Although teaching safety skills is recommended to prevent injury, cognitive limitations and behavioral problems characteristic of…

Education in the United States is becoming increasingly standardized, with the standards being initiated at the national level and then trickling down to the state level and finally the local level. Yet, this top-down approach to educational standards carries with it significant limitations, such as loss of local autonomy and restrictions on the…