Statistical significance is misused in educational and psychological research when it is applied as a method to establish the reliability of research results. Other techniques have been developed which can be correctly utilized to establish the generalizability of findings. Methods that do provide such estimates are known as invariance or…

This report presents examples of Rand's current research in the information sciences and illustrates the application of information science tools to specific policy studies. The projects discussed depict Rand's success with using corporate seed money to bridge the gap between the research and development of new information science tools and…

There are many problems involved in upgrading scientific literacy in high schools: poorly qualified teachers, the lack of good instructional materials, and economic and academic disadvantages all contribute to the problem. This document describes a project designed to increase the opportunities available to the high school science student to…

The paper discusses a number of issues concerning the practical usefulness of cognitive psychology research, and presents a case study of pilot training methods to illustrate a model of research processes that produces outcomes which contribute to both basic and applied research goals. Research studies are described as varying in the degree to…

This discussion of teaching science as a design activity emphasizes open-ended problem solving. Highlights include the relationship between teachers and students; hypotheses as solutions; and descriptions of four microworlds, or computer simulations, in chemistry, geography, physiology, and genetics which use graphic interfaces. (LRW)

Contains abstracts of presented papers which deal with teaching materials and methods in physiology. Includes papers on preconceptual notions in physiology, somatosensory activity recorded in the dorsal root ganglion of the bull frog, and the use of the Apple Macintosh microcomputer in teaching human anatomy and physiology. (TW)

Describes a game designed to impress upon undergraduates the difficulty of economic mobility for minorities. The game involves two groups, "Majorities" and "Minorities," and their efforts to build a simulated social network with string. Minorities receive shorter lengths of string and cannot leave their seats. Discusses follow-up exercises. (MJP)

Provides a step-by-step process for designing effective and interesting simulations. Explains and gives examples for the four steps: defining teaching goals, constructing the simulation, running the simulation, and debriefing. Asserts that simulations develop critical thinking and other skills. Examines possible means of assessment. (MJP)

In this article, the author discusses the use in policy analysis of models that incorporate uncertainty. He believes that all models should consider incorporating uncertainty, but that at the same time it is important to understand that sampling variability is not usually the dominant driver of uncertainty in policy analyses. He also argues that…

Because density is unobservable and must be inferred from knowledge about weight and size, it is a difficult concept to teach and learn. Even after traditional instruction, many students still have an undifferentiated concept that mixes characteristics of both weight and density. In this study, researchers tested the effectiveness of a unit they…

Reviews research and development in media and computer based classroom simulations, emphasizing feasibility and reliability, presentation modes, and benefits. Areas of further study are highlighted, including transfer of training, degree of realism necessary, and correlation with instructional theories; specific variables for study are also…

Describes the development of a computer simulation model of forage-beef production systems, which is intended to incorporate soil, forage, and animal decisions into an enterprise scenario. Produces a summary of forage production and livestock needs. Cites positive assessment of the program's value by participants in inservice training workshops.…

Describes an innovative instructional technique for teaching the economic analysis of public policies. Teams of four to six students with different skills and different tasks work together as economic decision making units in a series of instructional simulations. Discusses implementation, activities, and assessment. (MJP)

Discussed are seven computer programs: (1) a computer graphics experiment for organic chemistry laboratory; (2) a gel filtration simulation; (3) judging spelling correctness; (4) interfacing the TLC548 ADC; (5) a digitizing circuit for the Apple II game port; (6) a chemical information base; and (7) an IBM PC article database. (MVL)

Contends that student motivation is a major issue for all teachers but is of particular concern for middle school social studies teachers. Reports on an interview with 18 middle school teachers and 60 middle school students on the effectiveness of strategies designed to increase motivation. (CFR)