![]() ![]() To access the full site you need to send proof to Presidion who manage SPSS academic licences of 'lecturer' status to presidion e.g. #PSPP USER MANUAL HOW TO#This is a free version of SPSS called PSPP which claims to perform descriptive statistics, T-tests, anova, linear and logistic regression, cluster analysis, factor analysis, non-parametric tests and more.Ī free-to-use spreadsheet front end attaching itself to the R statistical language to enable gui use of some of its functions.įree student registration to look at youtube videos of how to use and interpret all the statistical methods available in SPSS. Materials from a related conference on cluster randomised trials (thanks to Adam Wagner for flagging this site) Karen Grace-Martin covers assumptions and interpretations of many statistical tests (including AN(C)OVAs and random effect models on her website called The Analysis Factor.Ī website has been launched about cluster randomised trials (thanks to Adam Wagner for flagging this site) This link seems broken (July 2006) contains a summary of this article.Ĭonfidence Intervals for the correlation coefficientĮxplanation of multiple regression using matrix algebra The use and abuse of correlation coefficients. ![]() Quasi-symmetry site, based on Caussinus (1966) ![]() Multi-collinearity Variance Inflation and Orthogonalization in Regression (Dr. Modeling and Interpreting Interactions in Multiple Regression (Donald F. Robin High's Data Analysis pages, including discussions of zeros in contingency tables Statnotes: Topics in Multivariate Analysis An Online Textbook, by G. Statistical Methods for Rater Agreement, by John Uebersax ![]()
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