In this research we describe and discuss a path analysis of an hypothesized model of environmental behavior. In formulating the model, we used variables that had previously been empirically linked to environmental behavior (e.g., knowledge of issues, attitudes) but also included others that had not been assessed in the context of a model…

Describes the process by which Learner Verification and Revision (LVR) transforms information gathered during learner verification into revision prescriptions for the development of instructional materials. Robinson's and Gropper's procedural models for formative evaluation are also discussed and a study comparing the effectiveness of materials…

The use of Bayesian and empirical Bayesian techniques to summarize results from parallel randomized experiments is illustrated using the results of eight such experiments from an SAT coaching study. Graphical techniques, simulation techniques, and methods for monitoring the adequacy of model specification are highlighted. (Author/JKS)

Empirically reviewed Israeli probation officer's recommendation in his investigation report concerning offenders between the ages of 18 and 21, studying factors influencing officer's recommending probation versus refraining from probation recommendation. Tested four models: diagnostic-rehabilitation, prognostic-public defense, organizational, and…

Piaget's last two works may add a new level of coherence and generality to his theories, which are grounded in an insight about the interdependence of reality and knowledge about reality. Piaget expanded Kant's epistemology to encompass three systems operating in the frames of biology, psychology, and culture. (MDM)

A model is presented for multiple pairwise comparisons of selected categories (cells) of a contingency table after the chi-square test has rejected the null hypothesis of equality of population proportions. The model determines which, if any, pairwise proportions have led to the rejection. (SLD)

Reports results of a study that was designed to empirically verify a system dynamics model that represents the relationship between dialog and structure as they relate to transactional distance and distance education. Topics discussed include discourse analysis; other variables relating to transactional distance; developing a prototype; and future…

Evidence-based practice approaches to interventions has come of age and promises to provide a new standard of excellence for school psychologists. This article describes several definitions of evidence-based practice and the problems associated with traditional statistical analyses that rely on rejection of the null hypothesis for the…

This paper assesses the relative merits of numerical and textual approaches to the study of international events. While enjoying a much longer history, numerical approaches have certain representational drawbacks that do not apply to textual approaches. Textual models provide a more adequate descriptive foundation for the study of international…

The U.S. Army Research Institute for the Behavioral and Social Sciences has developed a wide range of statistical models to test hypotheses generated in relation to an equally wide range of measurement and evaluation situations. The randomized block (RB) design has traditionally been a preferred model for much psychological research. The RB has…

Discussed is a model for goal setting, which is based on Locke's theory that difficult but clear and specific goals, if accepted, will result in higher performance than easy goals, nonspecific goals, or no goals at all. (Author/RK)

It is argued that research settings should be chosen with the whole experimental design in mind and that the availability of appropriate controls (groups or occasions for observation) should be as important as the suitability of the treatment group. (Author/AM)