This study developed an analytical approach to detecting groups with homogenous usage patterns in a Web-based information system. Principal component analysis was used for data reduction, cluster analysis for categorizing usage into groups. The methodology was demonstrated and tested using two independent samples of user sessions from the…

Describes a novel design of a Table Browser for casual users of statistical data. Focuses on the overall system architecture and the user interface. Describes the prototype interface and presents results of experiments testing the efficacy of the multi-threaded data flow. (AEF)

Discusses development of indicators for the safety of children in out-of-home care using administrative data from the Illinois Department of Children and Family Services. Reports rates of abuse and neglect from 1996 to 1999, and presents an alternative that accounts for the length of time children are exposed to abuse or neglect. (JPB)

Assessment methods adapted from qualitative research including ethnographic interviewing and journal writing were applied to the case of an adult with aphasia. By analyzing reports of the client and significant others over the course of treatment, changes in social participation and psychosocial well being were documented. These descriptive data…

This study examines a sample of 35 male children and adolescents involved with a northeastern district of the Georgia Department of Juvenile Justice. Subjects who participated in wilderness adventure therapy programs are compared to those who participated in group home programs. The study examines the rates of recidivism among the subjects within…

Having data available is so important because it can improve upon our personal perceptions. Admittedly, statistics can sometimes be skewed to tell whatever story their handlers want them to tell, but by and large, high-quality data allow us to step back from personal perceptions and embark on an analysis with an eye toward identifying the root…

A Head Start volunteer project was designed for a college-level child development course and implemented in three different sections of the class across two semesters. Overall, 70 students participated (65 females and 5 males) with assessment data collected from student volunteers and Head Start teachers and administrators. Students reported a…

The goals of this article are to (a) describe differences between moderator and mediator effects; (b) provide nontechnical descriptions of how to examine each type of effect, including study design, analysis, and interpretation of results; (c) demonstrate how to analyze each type of effect; and (d) provide suggestions for further reading. The…

Due to a poor module evaluation, mediocre student grades and a difficult teaching experience in lectures, the Data Analysis section of a first year core module, Research Methods for Social Sciences (RMSS), offered at the University of KwaZulu-Natal in South Africa, was completely revised. In order to review the effectiveness of these changes in…

This paper uses data envelopment analysis to examine the technical efficiency (TE) of 45 British universities in the period 1980/81-1992/93. This period was chosen primarily because it was characterized by major changes in public funding and in student:staff ratios. To shed light on the causes of variations in efficiency, TE is decomposed into…

This article explores the mathematics involved in the NCAA basketball tournament including data analysis, basic probability, expected value, and the multiplication principle. A fun activity is presented that applies these concepts and involves students shooting Ping-Pong balls to discover a best strategy. (Contains 3 tables and 3 figures.)

In this article, the authors present a classroom experiment that was developed to introduce middle school learners to the carbon cycle. The experiment deals with transfer of CO[subscript 2] between liquid reservoirs and the effect CO[subscript 2] has on algae growth. It allows students to observe the influence of the carbon cycle on algae growth,…

A collaborating scientist--a rewarding addition to any high school science program--can help students collect and analyze data that either replicates or parallels the work of the partnering scientist. This type of partnership is beneficial for both students and scientists, and perhaps there has never been a better time to consider such a…

This study explores the latent structure of scores on the Learning and Study Strategies Inventory (LASSI) and analyzes the relationship between this structure and students' academic performance. Two independent samples of college freshmen (n = 527) and seniors (n = 429) completed the LASSI. Data analysis of the first sample revealed acceptable…

This article presents person-oriented and variable-oriented approaches to data analysis. To illustrate these two approaches and the types of information they provide the researcher, data from 3558 control group youth from the National Cross-Site Evaluation of High Risk Youth Programs were analysed. The relationship, over time, between parent…