In many practical situations scaling the data is necessary to solve linear programs. This note explores the relationships in translating the sensitivity analysis between the original and the scaled problems.

Three elementary aged students with autism participated in an evaluation of computer based video instruction that targeted functional life skills. The effects of the software were analyzed in the context of a multiple probe design across and replicated across participants. This study represents a departure from more traditional video based…

This study utilized the Information Systems Success (ISS) model in examining e-learning systems success. The study was built on the premise that system quality (SQ) and information quality (IQ) influence system use and user satisfaction, which in turn impact system success. A structural equation model (SEM), using LISREL, was used to test the…

The relative positions of the sun, moon, and earth, their movements, and their relationships are abstract and difficult to understand astronomical concepts in elementary school science. This study proposes a three-dimensional (3-D) virtual reality (VR) model named the "Sun and Moon System." This e-learning resource was designed by…

A new paradigm is proposed for thinking about educational software, based on a the mutual interaction of the perspectives of those concerned in the use of educational software: the student, the teacher, and the software designer. This rejects the usual checklist approach and leads instead to an approach to software selection closely associated…

Increases in the availability of technology, the range of content software, and curriculum via the Internet have placed countless options in the hands of teachers. Similarly, increasing accountability has placed added pressure on teachers to meet stated objectives and ensure student performance. How can teachers optimize available technologies and…

Describes LISPA (Library and Information Center Staff Planning Advisor), a set of programs based on Ranganathan's staff plan model. LISPA particularly aids in planning for library staff requirements, both professional and paraprofessional, in developing countries where automated systems for other library operations are not yet available.…

An Excel add-in--XSEOS--that implements several excess Gibbs free energy models and equations of state has been developed for educational use. Several traditional and modern thermodynamic models are available in the package with a user-friendly interface. XSEOS has open code, is freely available, and should be useful for instructors and students…

Describes relatively new statistical method, hierarchical linear modeling (HLM), for estimating linear equations that explain outcomes for members of groups as a function of characteristics of groups and characteristics of members. Illustrates theory, practice, and interpretation of HLM in school effects studies. Discusses other education…

Summarizes the problem of factorial invariance in between-group difference studies, proposes a simplified notation intended to facilitate discussion of the problem, and suggests a structured approach for testing large models. Two computer programs are offered to help with the computation. (SLD)

This article describes how a diverse, interdisciplinary team of faculty formed a topic-based faculty learning community. Following an introduction to faculty learning communities and a brief discussion of their benefit to faculty engaged in the process of adopting new technology, we explain how our team, through a competitive mini-grant…

Behaviour modelling has been associated with higher learning outcomes compared to other training approaches. These cumulative research findings create imperative to examine underlying causal mechanisms or contingency factors that may promote behaviour modelling's advantages even further. We propose group-based learning as one contingency factor…

In this paper we present a system for automatic correction of errors made by learners of English. The system has two novel aspects. First, machine-learned classifiers trained on large amounts of native data and a very large language model are combined to optimize the precision of suggested corrections. Second, the user can access real-life web…

In order to make optimal educational use of social spaces offered by thousands of international communities in the second generation web applications termed Web 2 or Social Web, ICT competences as well as social skills are needed for both teachers and learners. The paper outlines differences in competence structures of Net Natives (who came of age…

Claims that the development process for computer software can be greatly aided by the writers of specifications if they employ basic iteration and prototyping techniques. Asserts that computer software configuration management practices provide ready models for iteration and prototyping. (HB)