We present a case study of the process through which a methodology was developed and applied to a quasi-experimental research study that employed propensity score matching. Methodological decisions are discussed and summarized, including an explanation of the approaches selected for each step in the study as well as rationales for these…

When conducting item reviews, analysts evaluate an array of statistical and graphical information to assess the fit of a field test (FT) item to an item response theory model. The process can be tedious, particularly when the number of human reviews (HR) to be completed is large. Furthermore, such a process leads to decisions that are susceptible…

The studies reported here asked: (a) How does receipt of outcome knowledge affect judgment? (b) How aware are people of the effects that outcome knowledge has on their perceptions? Answers to these questions will shed light on how people do learn and might better learn from history. (Author/RK)

When choosing between delayed or uncertain outcomes, individuals discount the value of such outcomes on the basis of the expected time to or the likelihood of their occurrence. In an integrative review of the expanding experimental literature on discounting, the authors show that although the same form of hyperbola-like function describes…

Group influence on risk taking was studied in a realistic casino setting, using blackjack as the criterion risk task and amount bet as the risk measure. (Editor)

Suggests that when choosing one's actions in many real world contexts, bare-bone tactics work at least as well as complex statistical formulas. Also, simple strategies wring insight out of shifting environments with much greater ease than do intricate probability equations. (CCM)

Decisions to terminate training for subjects involved with discrete trial experiments in discrimination learning should utilize a probability criterion rather than a deterministic criterion. Furthermore, these decisions should be based upon the number of correct and error responses made by the subject, with the decision made to terminate training…

Policy analysis, or policy study, is defined as the study of the nature, causes, and effects of alternative public policies; sometimes policy analysis refers to specific methods used. Two new developments associated with policy analysis are discussed. One is the concern for deducing the effects of alternative policies before they are adopted, as…

Describes a computer-based method of confidence-testing, available in batch processing and interactive form, which improves a student's ability to assess probabilities during clinical diagnosis. The methods and results of three experiments are presented. (EAO)

Simple Bayesian approaches can be applied to answer specific questions in evaluating an individualized reading program. A small reading and study skills program located in the counseling center of a major research university collected and compiled data on student characteristics such as class, number of sessions attended, grade point average, and…

Too few researchers understand what statistical significance testing does and does not do, and consequently their results are misinterpreted. This Digest explains the concept of statistical significance testing and discusses the meaning of probabilities, the concept of statistical significance, arguments against significance testing,…

Most research on information utilization in judgment and decision making has followed two basic approaches: "regression" and "Bayesian." Each has characteristic tasks and characteristic information that must be processed to accomplish these tasks. There has been a tendency to work within a single approach with minimal communication between the…

Eleven lectures on simulation and gaming delivered at a symposium in Western Canada are presented. Three articles concern ways of gaining knowledge about the effectiveness of the simulation method in teaching. Several articles describe the use of simulation in teaching specific areas: home economics education, agricultural engineering, and…

THIS MONOGRAPH IS INTENDED TO DISSEMINATE TO THE EDUCATIONAL COMMUNITY THE BASIC CONCEPTS AND PRINCIPLES OF A RECENTLY DEVELOPED PROJECT MANAGEMENT INFORMATION SYSTEM ENTITLED PROGRAM EVALUATION AND REVIEW TECHNIQUE (PERT). PERT IS A METHODOLOGY FOR PLANNING THE DIVERSE ACTIVITIES IN EITHER LARGE OR SMALL PROJECTS. STEPS OF THE PERT TECHNIQUE…

Expectancy theory and decision theory research predicting occupational preference and choice were reviewed to assess the usefulness of such approaches. Each investigation produced substantial support for the use of such models suggesting that both theories can provide practical insights for occupational guidance and counseling. While theoretical,…