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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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In a masterly commentary on the possibilities of education, eminent psychologist Jerome Bruner reveals how education can usher children into their culture, though it often fails to do so. Going well beyond his earlier acclaimed books on education, Bruner looks past the issue of achieving individual competence to the question of how education equips individuals to participate in the culture on which life and livelihood depend.
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To understand the way children develop, Bronfenbrenner believes that it is necessary to observe their behavior in natural settings, while they are interacting with familiar adults over prolonged periods of time. His book offers an important blueprint for constructing a new and ecologically valid psychology of development.
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Interactive Radio Instruction (IRI) is the use of interactive lessons delivered through either radio broadcast or audiocassette. An "audio" teacher directs the lessons while classroom teachers serve as facilitators. IRI has been used in developing countries worldwide to improve the quality of education across a range of school subjects and to serve as a form of teacher development. Multiple studies of IRI consistently have shown high learning gains, decreased equity gaps, and...
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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 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...