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This page lists some links that I have come across during my own research and teaching and that have proved useful in some way. Thus, if your research interests happen to coincide with mine, you may find some of these links helpful. Some of the website descriptions have been copied from these sites.


Institute for Digital Research and Education, Statistical Computing

The statistical computing website of the Institute for Digital Research and Education at the University of California Los Angeles offers a wealth of resources, including illustrations of the application of different statistical analysis techniques using different statistical packages. Each page provides a handful of examples of when the analysis might be used along with sample data, an example analysis and an explanation of the output, followed by references for more information.


R Graph Gallery

One of R's strengths is the ease with which well-designed publication-quality plots can be produced, including mathematical symbols and formulae where needed. The R Graph Gallery offers a wide collection of graphics examples, complete with code for reproducing them. A great source of inspiration!


Web Center for Social Research Methods

The Research Methods Knowledge Base is a comprehensive web-based textbook that addresses all of the topics in a typical introductory undergraduate or graduate course in social research methods. It covers the entire research process including: formulating research questions; sampling (probability and nonprobability); measurement (surveys, scaling, qualitative, unobtrusive); research design (experimental and quasi-experimental); data analysis; and, writing the research paper. It also addresses the major theoretical and philosophical underpinnings of research including: the idea of validity in research; reliability of measures; and ethics. The Knowledge Base was designed to be different from the many typical commercially-available research methods texts. It uses an informal, conversational style to engage both the newcomer and the more experienced student of research. It is a fully hyperlinked text that can be integrated easily into an existing course structure or used as a sourcebook for the experienced researcher who simply wants to browse.