An Educational Testing Service (ETS) procedure was evaluated, which is based on item response theory and estimates true scores on tests not taken. The reading, vocabulary, and mathematics tests of high school seniors from the National Longitudinal Study (NLS) of 1972 and the High School and Beyond (HSB) seniors of 1980 and 1982 were found to share…

Preschoolers 4 and 5 years of age were found to use four strategies differing in temporal characteristics as they solved simple addition problems with sums of 10 or less. Three strategies had visible and/or audible aspects, and one was covert, involving retrieval from memory. The harder the problem, the more often the children used an overt…

This report documents a computer program for simulation evaluation of item response theory (IRT) ability estimators. This Honeywell DPS version is a very slight modification of the program originally developed in FORTRAN-77 on a DEC VAX 11/780. The model of the world simulated by the program involves a unidimensional test in which the probability…

Two methods for solving problems are presented, designed to help people overcome difficulties that often occur in the problem-solving process. One difficulty people have is in using their knowledge to reach the decisive solution idea. The proposed "method of description" for eliminating this difficulty is based on a directed enrichment of the…

Francis Bacon began defining scientific methodology in the early 17th century, and secondary school science classes began to implement science labs in the mid-19th century. By the early 20th century, leading educators were suggesting that science labs be used to develop scientific thinking habits in young students, and at the beginning of the 21st…

Explains the hierarchic structure of the mammalian visual system. Proposes a model in which feedback pathways serve to modify sensory stimuli in ways that enhance and complete sensory input patterns. Investigates the functioning of the system through computer simulations. (ML)

Researched hypothesis-testing strategies (HTSs) used by counselors. Undergraduates and counselors-in-training interacted with a computer-simulated client counselor, then counselor. Of the three HTSs (confirmatory, disconfirmatory, and unbiased), the unbiased HTS was preferred choice of HTS, was stable across time and with different feedback, and…

Considers two basic models of the teaching-learning process, described as the didactic and the communication models, and applies them to computer assisted learning. Conventional and intelligent tutorials and simulation are used as examples to compare the amount of control students have over learning strategy, content manipulation, and domain…

Presents a computer-aided instruction model that uses the simulation of field battles to analyze the dynamic interrelationship of space and time in historical events. Implementation of the model is briefly discussed, and possible enhancements and applications for other areas are described. (Author/LRW)

Five papers on the use of computer simulation (CS) in educational research are presented. The impacts of CS on educational research, modeling task performance, use of CS in problem solving in subject-matter domains, an interpretation synthesis model of medical teaching rounds discourse for expert system interaction, and computer-based learning…

Described is a Monte-Carlo method for modeling physical systems with a computer. Also discussed are ways to incorporate Monte-Carlo simulation techniques for introductory science and mathematics teaching and also for enriching computer and simulation courses. (RH)

Use of a computerized simulation entitled "A Simulation of the First Year Teaching" by students in a teaching procedures class in physical education is described. (MT)

Uses examples from four exercises to show how computer-based education (CBE) is used to teach problem-solving in a physiology course. Screen prints are included to illustrate the exercises. Several benefits of using CBE strategies in physiology are also considered. (JN)

This study examined three statistical methods for selecting items for mastery tests: (1) pretest-posttest; (2) latent trait; and (3) agreement statistics. The correlation between the latent trait method and agreement statistics, proposed here as an alternative, was substantial. Results for the pretest-posttest method confirmed its reputed…

Presented are two problems that can be solved using a computer simulation by students who have completed Algebra II. The distance and bisector formulas and the various forms of the equations of a circle and straight line are the topics. Computer program listings are included. (MNS)