Computer-based information search services (ISSs) of the type that provide online literature searches are analyzed from a systems viewpoint using a continuous simulation model. The methodology applied is "system dynamics," and the system language is DYNAMO. The analysis reveals that the observed growth and stagnation of a typical ISS can…

The sensation of thermal comfort is determined by a combination of air temperature, humidity of the air, rate of movement of the air, and radiant heat. This digest is intended to assist architects to design educational facilities that are as thermally comfortable as is possible without recourse to mechanical air conditioning. A nomogram is…

This is a supplementary SMSG mathematics text for junior high school students. Key ideas emphasized are structure of arithmetic from an algebraic viewpoint, the real number system as a progressing development, and metric and non-metric relations in geometry. Chapter topics include sets, projective geometry, open and closed paths, finite…

This is one in a series of SMSG supplementary and enrichment pamphlets for high school students. This series is designed to make material for the study of topics of special interest to students readily accessible in classroom quantity. Topics covered include graphs, slope, distance, mid-point, proof, equations, and circles. (MP)

Project MACK's major goal was to provide a comprehensive school program at McClymonds High School in Oakland, California that would reduce the dropout rate, improve student achievement, reduce absenteeism and class-cutting, and improve student attitudes toward school. Project components included 1) Career Cluster Program, which focused on work…

An escalation in the use of non-book materials in the library at the University of Bath created the need for an evaluation of their uses, learning efficiency, and cost effectiveness. Data were collected during 1976-1977 using observations, short and long questionnaires, free responses, group interviews with students, and cost analysis. All…

This study was conducted to analyze and summarize raw data obtained from a 1972 study: "Report on a Cost Study of Specific Technical Processing Activities of the California State University and College Libraries" with the hypothesis that the cost of technical processes increases as the production volume both rises above and falls below…

This article describes a study of summertime classroom temperature and its relationship to the clothing worn by English secondary school children. Data on classroom temperatures and children's clothing were recorded during one summer for a total of 987 lessons. Analysis of the data showed that the strong clothing-temperature correlation could be…

This paper reports an experiment designed to test theoretical relations among fast problem solving, more complex and slower problem solving, and research concerning fundamental memory processes. Using a cathode ray tube, subjects were presented with propositions of the form "Y is in list X" which they memorized. In later testing they were asked to…

This booklet contains a collection of brief articles with accompanying statistical tables and graphs that were originally published in 1974 issues of "American Education." A variety of statistical data are presented in a series of two-page sections; taken together, these sections illuminate many of the current trends in American…

A computer program for the simulation of complex continuous process in real-time in an interactive mode is described. The program is user oriented, flexible, and provides both numerical and graphic output. The program has been used in classroom teaching and computer aided design. Typical input and output are illustrated for a sample problem to…

It was wished to determine the relative reliabilities of graphic and semantic differential factors to evaluate applicability of two rival models to the measurement of pupil attitudes. Data was collected from a sample of sixth grade pupils on both abstract graphic and typical semantic differential scales. Reliability estimates were constructed from…

The major purpose of this experiment was to examine the effects of format (bar graphs vs. tables) and organization (by year vs. by brand) on the speed and accuracy of extrapolation and interpolation with multiple, nonlinear trend displays. Fifty-six undergraduates enrolled in the College of Education at the University of Delaware served as the…

This volume, a reprinting of a classic first published in 1952, presents detailed discussions of 26 curves or families of curves, and 17 analytic systems of curves. For each curve the author provides a historical note, a sketch or sketches, a description of the curve, a discussion of pertinent facts, and a bibliography. Depending upon the curve,…

This study investigates relationships between differences in students' achievement and differences obtained by a technique held to yield a reasonably valid representation of students' memory structures of a particular subject matter. Also investigated was the nature of the flow of information between curriculum materials, teachers, and students.…