This page, created by Richard Lowry of Vassar College, will perform a two-way factorial analysis of variance for designs in which there are two to four randomized blocks of matched subjects, with two to four repeated...

This tutorial, created by Thomas W. MacFarland of Nova Southeastern University, explains the theory and use of two-way ANOVA and demonstrates it with an example on final exam scores. Data sets are given in both SPSS and...

This site, presented by Statistics Canada, is a section from "Statistics: Power from Data!" on variable classification. It discusses categorical and numerical variables and their types. The site discusses these...

This resource, created by author David M. Lane, is a general reference which helps to define and explain variance and standard deviation. The website is fairly simple, users just select the term they wish to define. The...

This source, created by David M. Lane of Hyperstat Online, defines and explains variance and standard deviation. The page intertwines mathematical formulas with text to best introduce the topic. While brief, it still...