This paper describes three computer-based simulators developed to support an undergraduate computer architecture course. Using a hypermedia authoring package, a simulator was created for each of the three course content areas: (1) introduction of the hypothetical computer structure--contains a tutorial, a quiz, and a simple program that presents…

A detailed investigation of the statistical procedure of W. Stout (the computer program DIMTEST) for testing the hypothesis that an essentially unidimensional latent trait model fits observed binary response data from a psychological test is presented. One finding is that DIMTEST may fail to perform as desired in the presence of guessing when…

A study found that the troubleshooting abilities of a treatment group of college students trained conventionally in a course called Aircraft Systems II and on a computer-based "Technical Troubleshooting Tutor" were better in some ways than those of a control group who trained conventionally without using the computer-based tutor. Aviation students…

The use of stepwise regression has been criticized for both interpretive misunderstandings and statistical aberrations. A major statistical problem with stepwise regression and other procedures that involve multiple significance tests is the inflation of the Type I error rate. General approaches to control the family-wise error rate such as the…

Two studies were conducted to determine the effects of gender, reasoning level, and inductive and deductive computer-simulated experiments (CSE) on problem-solving abilities in introductory general chemistry. In the pilot study, 254 subjects were randomly assigned to control (computer-assisted-instruction tutorials), inductive or deductive CSE…

This report characterizes human problem solving in digital circuit design. Protocols of 11 different designers with varying degrees of training were analyzed by identifying the designers' problem solving strategies and discussing activity patterns that differentiate the designers. These methods are proposed as a tentative basis for assessing…

Problems in the measurement of gain in adult literacy programs were investigated through repeated testing of a group of students in adult basic education and General Educational Development classes and through computer simulations. Ninety-two students were tested at 3 different times over 7 months with a battery of norm-referenced reading and…

This paper contains the results of a study on the importance of discovery learning using computer simulations. The purpose of the study was to identify what constitutes discovery learning and to assess the effects of instructional support measures. College students were observed working with an assignment and a computer simulation in the domain of…

The field of instructional technology is characterized by its products, such as instructional media, and its processes, such as instructional design. The process of instructional technology has been shaped by advances in learning and instructional theory over the past 50 years. Much of the development work of the field to date has been on direct…

Whether item response theory (IRT) is useful to the small-scale testing practitioner is examined. The stability of IRT item parameters is evaluated with respect to the classical item parameters (i.e., p-values, biserials) obtained from the same data set. Previous research investigating the effect of sample size on IRT parameter estimation has…

The graded response model for two-stage testing was applied to an attitudes toward science scale using real-data simulation. The 48-item scale was administered to 920 students at a grade-8 equivalent in Singapore. A two-stage 16-item computerized adaptive test was developed. In two-stage testing an initial, or routing, test is followed by a…

As drill and practice programs in computer assisted instruction (CAI) in English give students a chance to test their understanding and free the teacher from test grading, they seem a legitimate if unexciting use of the computer; but what seems less defensible is that, according to some estimates, 90% of available CAI software is of this drill and…

Advantages of using the microcomputer as an interactive electronic blackboard are discussed, and programs and programming techniques are described to illustrate the construction, design, storage, and modification of colorful and animated graphic displays. The methods described are based on use of an Atari 800 microcomputer but could be used on…

Queuing theory is examined in this paper in order to determine if the theory could be applied in educational settings. It is defined as a form of operations research that uses mathematical formulas and/or computer simulation to study wait and congestion in a system and, through the study of these visible phenomena, to discover malfunctions within…

In response to requests from the University of Alberta Department of Computing Services for PLATO (Programmed Logic for Automatic Teaching Operations) applications in structured learning situations, a program for computer-assisted bibliographic instruction (BI) was developed. The program is divided into the following six units: (1) Introduction;…