Compares the effect of a chemistry computer simulation, written by the author, with the effect of an instructor demonstration. The study indicates that in this particular situation the operation of a spectrophotometer can be effectively taught by computer simulation method. The program is written using HyperTalk, the HyperCard programming…

A mathematical model is proposed to describe how group differences in distributions of abilities, which are distinct from the target ability, influence the probability of a correct item response. In the multidimensional approach, differential item functioning is considered a function of the educational histories of the examinees. (SLD)

This meta-analysis investigated how effective computer-assisted instruction (CAI) is on student achievement in secondary and college science education when compared to traditional instruction. Results showed a small positive effect for CAI use when used in simulation or tutorial modes, with individual computer use, and when used as a supplement to…

The purpose of this study was to investigate how exposure to classroom instruction affected the use of a computer simulation that was designed to provide students an opportunity to apply material presented in class. The study involved an analysis of a computer-based crisis communication case study designed for a college-level public relations…

This document contains two papers on aviation education. "Chief Pilots of Regional Airlines Perceive Basic Instrument Skills as Most Important with Respect to Need for Additional Training of Entry-Level Pilots" (William C. Herrick) reports the results of a study in which 126 (of a population of 197) randomly selected regional airlines' chief…

How should organizations of intelligent agents be designed so that they exhibit high performance even during periods of stress? A formal model of organizational performance given a distributed decision-making environment in which agents encounter a radar detection task is presented. Using this model the performance of organizations with various…

Several regression methods were examined within the framework of weighted structural regression (WSR), comparing their regression weight stability and score estimation accuracy in the presence of outlier contamination. The methods compared are: (1) ordinary least squares; (2) WSR ridge regression; (3) minimum risk regression; (4) minimum risk 2;…

A strategy for comparing two sets of results (one based upon early childhood recollections (ECR) and another upon video taped (VT) group behavior) from the Perceptual Characteristics Rating Scale was developed. The null distribution of the mean deviation was estimated by randomly matching an ECR response vector with a VT response vector. To…

To compare the adolescent's mode of thinking on one specific measure of cognition, conservation of volume, with his mode of thinking on a task simulating a familiar real-life situation, a study was made using 162 students (76 males and 86 females, 13.4 to 17.7 years of age, grades 7,8,9,10,12). The students, grouped according to age into four…

A course in macroeconomics was used to investigate the cost effectiveness of computer-assisted instruction (CAI). The experimental design used an experimental section in which the students had the opportunity to use the computer to the intensity of their choice, choosing from tutorial lessons, games, and simulations. The students in the control…

Using 74 eighth graders, the effects of computer-assisted cooperative, competitive, and individualistic instruction were compared. Computer-assisted cooperative instruction promoted greater quantity and quality of daily achievement, more successful problem solving, more task-related student-student interaction, and increased the perceived status…

A study was conducted to assess effectiveness of a computer simulation which exposed students to three levels of real-life research situations as laboratory experience accompanying graduate level research design course. Simulation effects on achievement, perceived research competence, interest in research, and effects of differing amounts of…

Describes a rigorously controlled study comparing university students' perceptions of learning from a business simulation and from cases in a business policy course. Results indicate students perceive both cases and simulations as viable and valuable instructional methods, although cases are perceived to be generally superior to simulations. (MBR)

Two charting strategies to help students organize patients' data are Weed's problem-oriented medical record and Russell's condition diagram. Students at the University of Texas Medical School at San Antonio were divided into study groups. The condition diagram group format may be helpful for students with lower academic achievement. (Author/MLW)

The effectiveness of alternative procedures to correct for rater leniency/stringency effects was studied when true scores were known. Ordinary least squares, weighted least squares, and imputation of the missing data consistently outperformed averaging the observed ratings; and the imputation technique was superior to the least squares methods.…