of its predecessors: to provide up-to-date summaries and syntheses of recent research pertinent to the educational uses of information and communication technologies. In addition to updating, this new edition has been expanded from forty-one to fifty-six chapters organized into the following six sections: foundations, strategies, technologies, models, design and development, and methodological issues. In response to feedback from users of the second edition, the following changes have been built into this edition. More Comprehensive ? topical coverage has been expanded from forty-one to fifty-six chapters and includes many more chapters on technology than in previous editions. Restructured Chapters ? this edition features shorter chapters with introductory abstracts, keyword definitions, and extended bibliographies. More International ? more than 20% of the contributing authors and one of the volume editors are non-American. Theoretical Focus ? Part 1. provides expanded, cross-disciplinary theoretical coverage. Methodological Focus ? an extended methodological chapter begins with a comprehensive overview of research methods followed by lengthy, separately authored sections devoted to specific methods. Research and Development Focus ? another extended chapter with lengthy, separately authored sections covers educational technology research and development in different areas of investigation, e.g., experimental methods to determine the effectiveness of instructional designs, technology-based instructional interventions in research, research on instructional design models, and de

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