Discusses four reasons for promoting the use of confidence intervals: (1) ease of interpretation; (2) links with familiar statistical tests; (3) promotion of meta-analytic thinking; and (4) increase of information about precision. Discusses calculations of confidence intervals for a basic standardized effect size measure and discusses software for…

Illustrates the computation of confidence intervals for effect sizes for some analysis of variance applications and shows how the use of intervals involving noncentral distributions is made practical by new software. (SLD)

Introduces a computer package written for Mathematica, the purpose of which is to perform a number of difficult iterative functions with respect to the squared multiple correlation coefficient under the fixed and random models. These functions include computation of the confidence interval upper and lower bounds, power calculation, calculation of…

A computer virus is a program that replicates itself, in conjunction with an additional program that can harm a computer system. Common viruses include boot-sector, macro, companion, overwriting, and multipartite. Viruses can be fast, slow, stealthy, and polymorphic. Anti-virus products are described. (MLH)

Describes experience with certain tools and resources to help school business officials implement the Governmental Accounting Standards Board Statement 34. Focuses on Association of School Business Officials International's new Certificate of Excellence in Financial Reporting guidebook and financial-statement report-writer software called…

Discusses why the educational hardware and software industries appear to have stagnated and what to expect from educational technology in the future. (GR)

Computer programming lends itself to automated assessment. With appropriate software tools, program correctness can be measured, along with an indication of quality according to a set of metrics. Furthermore, the regularity of program code allows plagiarism detection to be an integral part of the tools that support assessment. In this paper, we…

Designing and explaining programs are often difficult tasks, especially when novices are involved. It also concerns more experienced programmers when complex algorithms need to be carefully explained and documented as part of software development.Good practice suggests that code and documentation be tightly coupled; but there are only a few…

This paper extends the discussion of the critical line approach using three risky stocks as described in Haugen's Modern Investment Theory, 4th edition. A dynamic presentation of the concepts involved in finding the efficient set, using two EXCEL spreadsheets and an HP-12C hand-held calculator, is provided. This dynamic presentation will enable…

Most people learn to drive without knowing how the engine works. In a similar vein, the author believes that students can learn economics without knowing the algebra and calculus underlying the results. If instructors follow the philosophy of other economics courses in using graphs to illustrate the results, and draw the graphs accurately, then…

Violations of assumptions, inflated Type I error rates, and robustness are important concepts for students to learn in an introductory statistics course. However, these abstract ideas can be difficult for students to understand. Monte Carlo simulation methods can provide a concrete way for students to learn abstract statistical concepts. This…

Very young students can begin to use technology to organize and analyze their data in sophisticated ways. The National Center for Education Statistics (2005) reported that 67% of nursery school students and 80% of kindergarten students were using computers in 2003. By the early elementary grades, some of these students are ready to begin using…

A split-sample replication criterion originally proposed by J. E. Overall and K. N. Magee (1992) as a stopping rule for hierarchical cluster analysis is applied to multiple data sets generated by sampling with replacement from an original simulated primary data set. An investigation of the validity of this bootstrap procedure was undertaken using…

Knowledge Management (KM) and knowledge sharing are important factors that support lifelong learning, and enable people to continue developing throughout their careers. The concept of a Community of Practice ( Wenger, 2000) is attractive in drawing together people whose work shares similar aspects, and consideration is given here to how technology…

A computer virus is a program--a piece of executable code--that has the unique ability to replicate. Like biological viruses, computer viruses can spread quickly and are often difficult to eradicate. They can attach themselves to just about any type of file, and are spread by replicating and being sent from one individual to another. Simply having…