Click on the following links. Please note these will open in a new window.

AllPsych Online, Experimental Design — Provides a brief but complete and clear discussion of different types of experiments. Also has explanations of other research methods topics such as measurement and research reports.

"Research Designs" from Statnotes — Along with Bill Trochim's site, this online textbook is one of the better places to learn about research design strategies (and statistics). By G. David Garson (North Carolina State University).

Internal Validity Tutorial — Psychology Centre, Athabasca University

Design of Experiments & ANOVA — Describes terms used in experimental research and explains analysis of variance (ANOVA), which is covered in Chapter 12. By Valerie J. Easto, John H. McColl, and Stuart G. Young.

Office for Human Research Protections (OHRP) — Research conducted on humans, however innocuous and simple the project may be, involves legal and ethical issues. This site shows how much time and effort goes into attempts to protect privacy, safety, and well-being. U.S. Department of Health and Human Services.

Center for Research in Social Simulation — The Center for Research in Social Simulation (CRESS), based in the Department of Sociology in the School of Human Sciences at the University of Surrey, is a "multidisciplinary center bringing together the social sciences, software engineering and agent-based computing to promote and support the use of social simulation in research in the human sciences."