The book that established itself as a standard text and reference work for students seeking to master research methods and procedures in psychology has been updated and revised in this new edition! The Second Edition of The Psychology Research Handbook: A Guide for Graduate Students and Research Assistants once again offers a comprehensive guide for understanding and conquering the entire research process. Editors Frederick T. L. Leong and James T. Austin have assembled a distinguished group of expert researchers who share skill sets accumulated as a result of years of practical exposure to the design, development, implementation, and documentation of research in psychology.

Using Advanced Statistics
Using advanced statistics
Lisa A.SteelmanPaul E.Levy

One's research questions or specific hypotheses should be the key in determining what statistical analyses will be employed in a particular study. In general, research questions may be broken into four categories: degree of relationship among variables, significance of group differences, prediction of group membership, and finally structure (Tabachnick & Fidell, 2001). In this chapter, we discuss each of these four categories of analysis, as well as the types of research questions associated with each (see Table 20.1). Before pursuing these advanced statistical techniques, we will begin with the notion of statistical power because this is one of the most important issues in research design and analysis, yet one of the most neglected. A full treatment of power ...

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