Graphs are widely used to model structures and relationships of objects in various scientific and commercial fields. Chemical molecules, proteins, malware system-call dependencies and three-dimensional mechanical parts are all modeled as graphs. In this dissertation, we propose to mine and index those graph data to enable fast and scalable search.…

The State Higher Education Finance (SHEF) report is produced annually by the State Higher Education Executive Officers (SHEEO) to broaden understanding of the context and consequences of multiple decisions made every year in each of these areas. No single report can provide definitive answers to such broad and fundamental questions of public…

Reports three experiments conducted to investigate factors controlling performance of nonreinforced verbal imitation. (WY)

In a study involving the reading of bar graphs it was found that students in the control group (who did not receive generalization cues) did significantly better than those in the experimental group. (Ed.)

Sources of observed differences in difficulty between items in graph comprehension performance were studied using 132 items from the Psychometric Entrance Test, an Israeli college entrance examination. Results indicate that item difficulty can be predicted successfully on the basis of item characteristics and task demands. Implications for graph…

Provides information for constructing two-dimensional performance graphs for students to assess their competencies and to diagnose difficulties in the important area of problem solving. (ASK)

The effects of cursory preliminary directions on the use of numerical tables, bar graphs, and line graphs by 288 fourth and sixth graders were investigated. Participants received no directions, written directions only, or written directions with assistance where necessary. The undirected table and bar graph users performed moderately well. Their…

Reviews the Linked Systems project protocols in the Name Authority Distribution Application and describes the requirements they were designed to meet. A technical evaluation of the protocols in actual operation at OCLC is presented, and suggestions for improved performance are made. (Author/CLB)

This investigation into the effects of configural properties (properties determined by the interrelationships existing between component parts) used a selective attention task to determine whether intersection is a primary encoding feature or is constructed after slopes and heights are perceived. The method for encoding feature identification,…

A trilinear chart for understanding the distribution of achievement levels of students' performance in the National Assessment of Educational Progress (NAEP) is described and its use illustrated with data from the 1992 state NAEP mathematics assessment. Trends for all 44 participating jurisdictions are simultaneously displayed. (SLD)

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…

Description of study to determine the impact of management training on student performance focuses on the need for proper evaluation. Pre- and posttraining evaluative tools for rating managers are described, differences in ratings are analyzed, and implications for evaluating management training on interpersonal skills are discussed. (LRW)

A method of graphing multivariate data, called the star plot, is very useful in educational contexts because it provides teachers and guidance counselors with information not present in unsupplemented student achievement data. The utility of the method can be seen in analysis of data from a study of factors related to the problem-solving ability…

This investigation of cognitive effort begins with a review of cognitive principles relating to memory and graphic encoding of information. The cognitive framework described allows explanation of improved memory due to reparsing of graphic representations. It also provides the basis for optimizing graphical material design to insure best retention…