We develop an Easy Java Simulation (EJS) model for students to experience the physics of idealized one-dimensional collision carts. The physics model is described and simulated by both continuous dynamics and discrete transition during collision. In designing the simulations, we discuss briefly three pedagogical considerations namely (1) a…

This two-part article combines a comprehensive account of a probabilistic model of retrieval with new systematic experiments on TREC (Text Retrieval Conferences) Program material. Part 1 covers the foundations and the model development for document collection and relevance data, along with the test apparatus. Data and results tables for both parts…

Article considered the concept of interpersonal conflict involving educational personnel and its importance to the administration of educational institutions. (Author/RK)

This system for predicting enrollment in the London Borough of Bromley was first developed for the Hertfordshire County Council and was modified to fit the unique situation in Bromley, including high mobility of the population and high proportion of children in private schools. The system divides the borough into 207 zones and produces forecasts…

A review of data on parent-offspring resemblances in intelligence is presented in the context of correlation, regression and variance predictions from the polygenic model and an environmental model. (Editor)

This dissertation, which is divided into five chapters, is concerned with presenting a curriculum model for the teaching of business management on the doctoral level. Its purpose is to design a study program leading to a Doctor of Business Administration (DBA) degree based on the expressed needs of the members of the American Assembly of…

Results of data analysis on 470 journal titles illustrate complexity of the fuzzy set theory modeling process, which consists of three factors--number of missing issues, citations, circulations--and its limitations in making journal binding decisions. Procedures of research, data collection, and data analysis are discussed. Matrices are included.…

The purpose of this project was to test the effect of an intensive acquisition effort in one region of the nation (Connecticut, Maine, New Hampshire, Rhode Island, and Vermont); and develop selection criteria, indexing strategies, and abstract formats congruent with user needs. The staff of The Center for Vocational and Technical Education (CVTE)…

Significant aspects of the economic relationships between the Harrisburg (Pennsylvania) Area Community College and the local community were studied, and quantitative information regarding such relationships is presented. The impact on business was measured in terms of increased cash flows in the local economy. Both an inclusive and a conservative…

This book describes a structure for understanding and managing the process and options for gathering and analyzing data on needs. The three-phase model that forms the basis for the structure grew from both theory and practical experience in many settings. The focus is on assessing the needs of organizations rather than individuals. It is stressed…

Seven institutional research maxims based on research and theory about how people cognitively process information are discussed: more may not be better; augment humans with models; chunk data wisely; know decision-makers; heuristics are not always helpful; arrange tables by patterns; and accept negative evidence and new hypotheses. (Author/MLW)

This study was undertaken to develop a model early warning system which could anticipate job openings generated in local communities by large Federal procurement contracts. Among the major findings from the cases studied: (1) projections of job openings were possible in all contracts considered, by the use of estimating techniques which are…

The impact which program evaluation and subsequent short-term in-service education efforts had upon the curricular programs of two distinctly different school settings was assessed. In addition, the appropriateness of the Kunkel-McElhinney model of curriculum evaluation, as perceived by professional school personnel, was examined and assessed. The…

The purpose of this study is to provide day care center management and government funding agencies with empirical estimates of the costs of day care centers in Pennsylvania. Based on cost data obtained from the Department of Public Welfare and survey information from the Pennsylvania Day Care Study Project, average and marginal costs of day care…

Investigates teacher reformulation of student talk in order to determine the manner in which teachers affect student meaning and expression. Findings indicate that reformulation is a device used by teachers to control classroom dialog and that teachers disproportionately perform the language functions most commonly associated with higher-order…