Statistical tables associated with named probability distributions and their families, such as the standard normal, Student's t, and chi-square tables, among others, have been utilized for years and are still widely used today, especially for mathematics and statistics education. While such tables can be found in many statistics textbooks and even…

Generalizability theory is a modern, powerful, and broad framework used to assess the reliability, or dependability, of measurements. While there exist classic works that explain the basic concepts and mathematical foundations of the method, there is currently a lack of resources addressing computational resources for those researchers wishing to…

Crystallographic information provides the fundamental basis for understanding the properties and behavior of materials. This data, such as chemical composition, unit cell dimensions, space group, and atomic positions, derives from the primary literature--that is, from published experimental measurement or theoretical calculation. Although the…

This paper discusses common approaches to presenting the topic of skewness in the classroom, and explains why students need to know how to measure it. Two skewness statistics are examined: the Fisher-Pearson standardized third moment coefficient, and the Pearson 2 coefficient that compares the mean and median. The former is reported in statistical…

Advancement technology is reshaping the business of fundraising, alumni relations, communications, and marketing. Through all of these innovations, the backbone of advancement systems remains the constituent database. This article takes a look at advancement databases that track constituent data.

It is a pity that for so many people not involved in Teaching, and for a surprising number who are, mathematics in schools is "chiefly" all about the ability to know a set of facts, multiplication tables and addition bonds in particular, rather than the capacity to reason and explore patterns and relationships in Number and Shape.…

Power computations for one-level experimental designs that assume simple random samples are greatly facilitated by power tables such as those presented in Cohen's book about statistical power analysis. However, in education and the social sciences experimental designs have naturally nested structures and multilevel models are needed to compute the…

The fifth in a series of articles on microcomputer software for information storage and retrieval describes characteristics of and presents test results for seven programs in the following categories: personal information managers, including 3by5/RediReference, askSam, Dayflo Tracker, and Ize; Personal Librarian, a relevance ranking program; and…

Discusses results of a 1997 "CMC News" readers' survey of the top 10 CD-ROM titles used by schools. Compares results of previous surveys (1993 and 1995). Four tables and figures show number of users for each of the 10 CD-ROMs, top-10 rankings for year 1993, 1995, and 1997, increase in ownership of 7 of the 10 titles, and total respondents owning…

Presents a three-class taxonomy of current approaches to the provision of performance support and suggests that this could form the basis for future developments for electronic performance support. Intrinsic, extrinsic, and external types of performance support are described, and tables outline characteristics of intrinsic and extrinsic…

Discusses research with neural networks in the area of finance. Highlights include bond pricing, theoretical exposition of primary bond pricing, bond pricing regression model, and an example that created networks with corporate bonds and NeuralWare Neuralworks Professional H software using the back-propagation technique. (LRW)

The central objective of factor analysis is to explain the greatest amount of variance in a data set with the smallest number of factors. Higher-order analysis is an invaluable tool that offers the benefit of parsimony provided by first-order analysis with the opportunity to make data-based generalizations beyond the first-order. Higher-order…

Presents methods for preparing technical documents on microcomputers by modifying WordStar and using inexpensive software to create scientific symbols and other characters needed. Procedures are described for use with a Zenith A-100 microcomputer and an Epson FX dot matrix printer, and may be adapted for other configurations. (LRW)

Discusses the use of Web log analysis to help understand user visit patterns to Web sites and describes the use of computer software to generate a variety of interactive visualizations of log data that can be used to explore server data across various dimensions. Explores difficulties of data collection, presentation, and interpretation.…

Describes the design and evaluation of a prototype electronic performance support system for use in a university setting that was based on a needs analysis relating to an existing lecture-based course. Performance support for staff and for students is examined, and self-study support material is discussed. (LRW)