A special case of the homogeneity of effect size test, as applied to pairwise comparisons of standardized mean differences, was evaluated. Procedures for comparing pairs of pretest to posttest effect sizes, as well as pairs of treatment versus control group effect sizes, were examined. Monte Carlo simulation was used to generate Type I error rates…

Research was conducted to provide educational researchers with a choice of pairwise multiple comparison procedures (P-MCPs) to use with single group repeated measures designs. The following were studied through two Monte Carlo (MC) simulations: (1) The T procedure of J. W. Tukey (1953); (2) a modification of Tukey's T (G. Keppel, 1973); (3) the…

Potential solutions to applied measurement problems are commonly evaluated using simulated data, largely because it is often impossible, difficult, or prohibitively expensive to supply the needed volumes of real data. However, answers proved by simulation studied generalize real-world problems only to the extent that the simulated data resembles…

An approach that is currently gaining popularity in educational measurement is one that treats item response theory (IRT) as a special case of nonlinear factor analysis (NLFA). A brief overview is provided of some of the research that has examined the relationship between IRT and NLFA. Three NLFA models are outlined, emphasizing their major…

The purpose of this study was to estimate the extent to which recording variability among standardized patients (SPs) has an impact on classification consistency with data sets simulated to reflect performances on a large-scale clinical skills examination. SPs are laypersons trained to portray patients in clinical encounters (cases) and to record…

This report presents basic theoretical and methodological assumptions for investigating the relationship between competence and qualifications by means of simulation tasks. An analysis of the types of tasks that have been used in the study of problem solving psychology serves as a background for an exposition of the relationship between competence…

In this study, the effect of appended pretesting was evaluated with regard to item statistics and examinee scores for groups of items that were pretested as part of a large-scale operational testing program. In appended pretesting, items are administered in a separately timed section at the end of an operational test battery. Two evaluations were…

The level of standardized effect sizes obtained by chance and the use of significance tests to guard against spuriously high standardized effect sizes were studied. The concept of the "protected effect size" is also introduced. Monte Carlo methods were used to generate data for the study using random normal deviates as the basis for sample means…

Previous studies that investigated the effect of unequal ability distributions on the Type I error (TIE) of the Mantel-Haenszel chi-square test for detecting differential item functioning (DIF) simulated ability distributions that differed only in means. This simulation study suggests that the magnitude of TIE inflation is increased, and the type…

One set of approaches to the problem of clustering with dichotomous data in cluster analysis (CA) was studied. The techniques developed for clustering with binary data involve calculating distances between observations based on the variables and then applying one of the standard CA algorithms to these distances. One of the groups of distances that…

ERG--the Energy Resources Game--is a computer based game which explores questions regarding regional energy supply and demand, such as population and economic growth goals; acceptable levels of dependence on imported energy; and acceptable levels of environmental impact. (JA)

A simulation of a buying service for a number of retail stores, termed FLAIR, is described as a flexible instructional vehicle meeting the needs of business procedures trainees attending the Southern California Regional Occupational Center. Training objectives, office organization, and the importance of real-world simulation in developing…

A mock trial activity reflects the actual practice of plea bargaining which is used to reduce the heavy load of cases in the courts. (Author/KM)

Describes four systematic techniques of future forecasting which could be useful in social planning extrapolation, Delphi forecasting, simulation, scenario-speculation. (Author/NJ)

The potential for simulation teaching of special library administration has attracted interest in library education circles. The nature of the models needed for this kind of teaching and the process of designing them are described. (18 references) (Author)