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In this sequel to Rural Development: Putting the last first Robert Chambers argues that central issues in development have been overlooked, and that many past errors have flowed from domination by those with power. Through analysing experience - of past mistakes and myths, and of the continuing methodological revolution of PRA (participatory rural appraisal) - the author points towards solutions. In many countries, urban and rural people alike have shown an astonishing ability to express and...
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An unintended consequence of specialization in science is poor communication across specialties. Information developed in one area of research may be of value in another without anyone becoming aware of the fact. We describe and evaluate interactive software and database search strategies that facilitate the discovery of previously unknown cross specialty information of scientific interest. The user begins by searching MEDLINE for article titles that identify a problem or topic of interest....
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Much social and behavioral research involves hierarchical data structures. . . . Recent developments in the statistical theory of hierarchical linear models now afford an integrated set of methods for such applications. This introductory text explicates the theory and use of hierarchical linear models (HLM) through rich, illustrative examples and lucid explanations. The presentation remains reasonably nontechnical by focusing on three general research purposes—improved estimation of effects...
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Valid measurement scales for predicting user acceptance of computers are in short supply. Most subjective measures used in practice are unvalidated, and their relationship to system usage is unknown. The present research develops and validates new scales for two specific variables, perceived usefulness and perceived ease of use, which are hypothesized to be fundamental determinants of user acceptance. Definitions for these two variables were used to develop scale items that were pretested...
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A short description is given of software process models and the issues they address. An outline is given of the process steps involved in the spiral model, an evolving risk-driven approach that provides a framework for guiding the software process, and its application to a software project is shown. A summary is given of the primary advantages and implications involved in using the spiral model and the primary difficulties in using it at its current incomplete level of elaboration.<>
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A short description is given of software process models and the issues they address. An outline is given of the process steps involved in the spiral model, an evolving risk-driven approach that provides a framework for guiding the software process, and its application to a software project is shown. A summary is given of the primary advantages and implications involved in using the spiral model and the primary difficulties in using it at its current incomplete level of elaboration.<>
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The effect of providing middle school students with a video accommodation for a standardized mathematics test was examined. Two hundred forty-seven students were asked to solve 60 word problems. One half of the questions were presented in standard form, while the other half were read by an actor on a video monitor. Students were grouped according to mathematics and reading ability. A test accommodation effect was found for students possessing below-average mathematics skills. The problems...
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This article presents evidence from an evaluation conducted by the Primary Science Programme (PSP) in South Africa, concerning the impact of classroom-based coaching on the teaching methods used by primary science teachers. The methods used by teachers provided with both workshops and classroom-based coaching were compared with those used by teachers who received workshops only and a control group who received no InSET at all. The findings showed that teachers who received coaching made...
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In the aftermath of the introduction of free primary education in Malawi, 17 000 untrained teachers were recruited to meet the new demand for schooling. This article reports a study carried out to investigate how the new recruits were coping and how far the schools were able to provide informal on-the-job training. It also describes how action research was introduced to help heads and both qualified and unqualified teachers to improve their own practice. Conclusions are drawn about the feasibility of school-based training in Malawi.
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The Web is a popular platform for training educators and learners in educational systems. We find several Web-based training systems that are developed by enterprises that try to train teachers and students to use Web technologies in educational settings. The purpose of this article is to apply systems design principles to the design of Web-based training systems for teachers and learners. Several issues will be addressed in this paper such as the development of an Integrated Learning...
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This document reviews studies of professional development for teachers to examine benefits to students in science and mathematics education. A major finding from this review was that programs that focused on teaching classroom management strategies or attaining knowledge of how students learn specific school subject matter provided later benefits to students. The more successful professional development programs were not simply courses in mathematics or science, but instead were about what...
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The new dynamics of strategy
