An alternative two-stage least squares (2SLS) estimator of the parameters in LISREL type models is proposed and contrasted with existing estimators. The new 2SLS estimator allows observed and latent variables to originate from nonnormal distributions, is consistent, has a known asymptotic covariance matrix, and can be estimated with standard…

Comparison of the effectiveness of two computerized environments, Schemes for Problem Analysis (SPA) and Algebraic Proposer (AP), with two sixth-grade classes found that in solving easy word problems, both software systems were equally helpful, but in harder word problems, those students who learned with SPA experienced more success than those who…

Describes the development, use, and evaluation of the "Osmosis Program" as a teaching tool to elicit and challenge college students' understanding about diffusion and osmosis. Results showed students using the program performed better on a diffusion and osmosis assessment test than students not using the program. (Author/MKR)

Discusses interactivity as it pertains to learning. Presents the findings of a survey of primary school teachers asked to evaluate two science-based CD-ROMS and the resulting theoretical framework of cognitive interactivity. Identifies dimensions for teachers to assess (visibility and accessibility, manipulability and annotatability, creativity…

A study to determine effects of Lightspan Partnership Inc.'s interactive materials on student achievement in a Denver- area elementary school revealed higher reading and math test scores for Lightspan schools, compared to control schools. This serious play curriculum, assisted by parents, benefited neediest kids most. (MLH)

This brief article identifies software that supports visual spatial intelligence, a characteristic of many intellectually gifted children. Such software should be complex, flexible, and include visual components. The review of five software titles provides information on appropriate ages, computer compatibility, and source, as well as an…

Discusses problems that arise when computer software users have to learn a new system while maintaining productivity. Highlights include active learning; a constructivist view; Vygotsky's zone of proximal development; and a model called Design for Learnability (DesiL) that focuses the performance technologist on an ethnomethodological study of…

Discussion of the paradigm shift regarding the instructor's role as facilitator focuses on an action research conducted in a graduate course in which the presenter employed teaching strategies that encouraged students to learn collaboratively and independently from the instructor. Explains the use of computer-based applications, including Web page…

Analyzed the relationships between elementary teachers' instructional perspectives and their use of technology in instruction, examining the types of software they used. Surveys of teachers in 418 schools indicated that views about effective computer-based pedagogy related to types of software they reported using with their students. Two…

Reviews the evolution of the educational computer software "Geometer's Sketchpad" and its history. The features of the software invite exploration and play and enable users to sense their own role in shaping and crafting their understanding of mathematics. (ASK)

Describes an online approach through using a MOO, a computer program that allows students to share text-based virtual reality. The goal of the program was to build an environment that both enabled practice in the target language and sustained reflection on the processes of cultural production and reception. (Author/VWL)

Software agents are computer programs that run in the background and perform tasks autonomously as delegated by the user. This paper blends models from marketing research and findings from the field of decision support systems to build a framework for the design of software agents to support in e-commerce buying applications. (Contains 35…

A qualitative study of three Chinese interactive multimedia programs and interviews with multimedia designers were undertaken to develop user interface design guidelines for Chinese multimedia designers. The study revealed that most multimedia designers do not have formal training in user interface design and employed few guidelines. Recommends…

Investigates performance outcomes based on different goal orientations by using a computer support environment (SCI-WISE) designed for learning and doing inquiry-based science projects. Uses two versions of SCI-WISE software and systems based partly on the theoretical framework of levels of agency and goal orientation. (Contains 16 references.)…

Discussion of aggregator databases focuses on a project at the Hong Kong Baptist University library to integrate full-text electronic journal titles from three unstable aggregator databases into its online public access catalog (OPAC). Explains the development of the electronic journal computer program (EJCOP) to generate MARC records for…