Describes several salient features of multidimensional scaling (MDS) for spatial distance models including proximity measures, interpoint distances, goodness-of-fit, and distinctions between metric and nonmetric scaling. Four commonly used MDS computer programs are described, and a section on applications of MDS selected from the counseling…

Describes the programming interface and implementation of the repository engine and the Open Information Model for Microsoft Repository, an object-oriented meta-data management facility that ships in Microsoft Visual Studio and Microsoft SQL Server. Discusses Microsoft's component object model, object manipulation, queries, and information…

I. Olkin and J. Finn (1995) developed expressions for confidence intervals for functions of simple, partial, and multiple correlations. Describes procedures and computer programs for solving these problems and extending the methods for any number of predictors or for partialing out any number of variables. (Author/SLD)

Introduces the problem of hierarchical, or nested, data structures and discusses how this problem is dealt with effectively. Provides examples of the pitfalls of not doing appropriate analyses. New software is making hierarchical linear modeling more user-friendly and accessible. (SLD)

Discusses the mobile software agent paradigm that provides a foundation for the development of high performance distributed applications and presents a simple, distributed access control architecture based on the concept of distributed, active authorization entities (lock cells), any combination of which can be referenced by an agent to provide…

While reviews abound on theoretical topics in educational psychology, it is rare that we examine our field's instrumentation development, and what effects this has on educational psychology's evolution. To repair this gap, this paper investigates and reveals the implications of software technologies for researching and theorizing about core issues…

While I wrote this column, there seemed to be a lull in new software announcements for education and educators. Perhaps it is reflective of the tightening of school budgets or the heavy emphasis on standardized tests and strictly measurable results here in the United States, which has lead to fewer really exciting software announcements lately.…

In the last year, a series of viruses and worms that caused damage across the Internet in record time has made very clear how vulnerable computer systems are. The MS Blaster, Slammer, Sasser, and Korgo.W worms have shown that signature-based antivirus software and traditional firewalls are not enough to protect networks. Everyone is worried about…

Standard Microsoft Excel functions and the Excel Data Table facility are used in randomization applications using resampling with and without replacement.

This article describes how Chernoff faces can be drawn in Microsoft Excel.

If you have worked with computers for any length of time, you have undoubtedly heard the warnings and the recommendations. Data stored on PCs can disappear in a nanosecond. You need to back up any crucial data you cannot risk losing. Ideally, you should store at least one set of crucial back-up data off-site in case of a fire, flood or other…

Creating a digital library might seem like a task best left to a large research collection with a vast staff and generous budget. However, tools for successfully creating digital libraries are getting easier to use all the time. The explosion of people creating content for the web has led to the availability of many high-quality applications and…

The 13th iteration of the International Conference on Educational Data Mining (EDM 2020) was originally arranged to take place in Ifrane, Morocco. Due to the SARS-CoV-2 (coronavirus) epidemic, EDM 2020, as well as most other academic conferences in 2020, had to be changed to a purely online format. To facilitate efficient transmission of…

These proceedings contain the papers of the 16th International Conference on Cognition and Exploratory Learning in the Digital Age (CELDA 2019), held during November 7-9, 2019, which has been organized by the International Association for Development of the Information Society (IADIS) and co-organised by University Degli Studi di Cagliari, Italy.…

The Panel on Guidelines for Statistical Software was organized in 1990 to document, assess, and prioritize problem areas regarding quality and reliability of statistical software; present prototype guidelines in high priority areas; and make recommendations for further research and discussion. This document provides the following papers presented…