Two evaluations of video programs that involved groups of learners interacting with LaserVision software are presented. One concerns counselling skills for student teachers. The other is a geography simulation program. Program structure, group interaction, and the role of the instructor are discussed. Learners in both studies found the visual…

A scoring algorithm for performance assessments is described that is based on expert judgments but requires the rating of only a sample of performances. A regression-based policy capturing procedure was implemented for clinicians evaluating skills of 280 medical students. Results demonstrate the usefulness of the algorithm. (SLD)

Examines the instructional effects of computer graphics and rehearsal strategies on student achievement of different educational objectives. Participants were 63 college students. Results indicated that students who received textbook material complemented by specific computer graphics technologies achieved significantly higher scores than did…

Virtual Enterprises International (VE) is a high school program that teaches students about business through task-oriented and hands-on coursework. With the assistance of a coordinator and business mentors, VE students create and oversee a virtual firm, conducting business with other virtual firms nationally and internationally. The program…

Virtual reality is an immersive, interactive medium that manipulates the senses in order provide users with simulated experiences in computer-generated worlds. The visual design of virtual reality is an important issue, but literature has tended to stress the medium's instructional potential rather than setting forth a protocol for designing…

This study examines how academic assertiveness in junior high school students affects conceptual change and the degree to which their assertiveness affects the conceptual change of partners paired with them for a series of activities using a computer simulation of the human cardiovascular system. The sample was a group of 90 eighth-grade students…

The purpose of this study was to investigate the effects of interactive learning strategies in the form of visually-based, real-time computer simulations on inductive learning by adults in physical science. The subjects were 160 upperclass undergraduate students who were enrolled in an introductory computer education class. The computer based…

Military personnel facing forced retirement are prime candidates for retraining as teachers. As mature adult learners, retiring/retired military personnel have certain needs that must be addressed if they are to become successful in their educational careers. Knowles' six assumptions of andragogy acknowledge these special needs as follows: adults…

This study examined learning by individuals and groups in a computer environment. Individual interactivity as a function of group size was investigated by focusing on various modes of interaction available to students while they completed activities using a computer. The activities, which involved manipulation of pictures of batteries, bulbs, and…

The purpose of this study was to investigate the effect of using multidimensional items in a computer adaptive test (CAT) setting which assumes a unidimensional item response theory (IRT) framework. Previous research has suggested that the composite of multidimensional abilities being estimated by a unidimensional IRT model is not constant…

ASCAL is a microcomputer-based program for calibrating items according to the three-parameter logistic model of item response theory. It uses a modified multivariate Newton-Raphson procedure for estimating item parameters. This study evaluated this procedure using Monte Carlo Simulation Techniques. The current version of ASCAL was then compared to…

The purpose of this study was to examine the effects of animated instruction and levels of practice on application learning in a computer-based instructional (CBI) science lesson. A total of 119 fourth and fifth grade students participated in an introductory lesson covering Newton's Laws of Motion. Three levels of visual elaboration (static…

The target of difficulty of the Educational Technology Center (ETC) Heat and Temperature Group is basic thermal physics, particularly the differentiation between heat and temperature. High school teachers often find that thermal concepts are very difficult for their students to master and attribute students' difficulties at least in part to the…

This paper argues that electronic text applications in higher education can be conceptualized in terms of three communicational intentions of computer-based systems: informational, instructional, and instrumental (tool-oriented). Product-oriented and service-oriented applications of electronic text are contrasted, and instructional applications…

A technique for studying how parents think, make decisions, and solve childrearing problems, Computer-Presented Social Interactions (CPSI), is described. Two studies involving CPSI are presented. The first study concerns a common parental cognitive task: causal analysis of an undesired behavior. The task was to diagnose the cause of non-contingent…