are shown how to analyze and evaluate the research, and judge the usefulness of the findings for educational practice. Extensive use of aides to facilitate student learning include; chapter roadmaps and concept maps, study questions, a book website, consumer tips, examples and excerpts from published articles (including seven full length articles), and author reflections. The fourth edition includes a more extensive, balanced presentation of both quantitative and qualitative methods, new discussion of mixed-mode studies, new discussion of effect size, greater treatment of survey research.

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