Data analysis and Statistical Methods

ONE-STOP SHOPPING

This page is incredibly helpful: as long as you can figure out what types of variables you have, the site tells you what tests are appropriate to analyze them, and gives you the actual codes and interpretations for the most popular statistical packages (SAS, STATA, SPSS)!

http://www.ats.ucla.edu/stat/stata/whatstat/default.htm

An Algorithmic Approach

This page asks you a series of questions about your study.  Your answers lead you through an algorithm to the appropriate statistical test.

http://www.microsiris.com/Statistical%20Decision%20Tree/