Two-Way Analysis of Variance resources

This teach yourself worksheet looks at the use of Analysis of Variance when you have two factors (categorical grouping variables). This also includes infomation on how to do this using SPSS. Note that the SPSS data set battery.sav referred to in the worksheet is also available here.

This self-help resource provides an overview of paired t-tests in R, used to compare means of data from two related samples, such as observations before and after an intervention on the same participant, comparisons of measurements from the same participant for two different conditions. This resource has been made available under a Creative Commons licence by Sofia Maria Karadimitriou and Ellen Marshall, University of Sheffield.

Data sets for the self-study training resource for new statistics tutors entitled "SPSS Workbook for New Statistics Tutors". These were developed by Ellen Marshall (University of Sheffield) and reviewed by Jean Russell (University of Sheffield).

Solutions to the self-study training resource for new statistics tutors entitled "SPSS Workbook for New Statistics Tutors". These were developed and contributed to the statstutor Community Project by Ellen Marshall (University of Sheffield) and reviewed by Jean Russell (University of Sheffield).

A handy quick guide to statistical tests and techniques for those providing statistics support. This covers when to use each technique along with the interpretation of results, checking assumptions and what to do if the assumptions are not met. This was developed by the MASH Centre at the University of Sheffield and contributed to the statstutor Community Project by Ellen Marshall (University of Sheffield) and Alun Owen (University of Worcester) and reviewed by Jean Russell and Nick Fieller, (University of Sheffield).