Useful Websites

Links to Other Resources Mentioned in the Book

G*Power 3
http://www.psycho.uni-duesseldorf.de/abteilungen/aap/gpower3/
This website allows you to download and install, free of charge, the latest version of G*Power which is an accessible software package allowing you to conduct a range of sample size and power calculations. It also contains a very useful User Guide.

Z Scores Calculator
http://davidmlane.com/hyperstat/z_table.html
This website allows you to enter the mean and standard deviation for a distribution and will calculate for you what proportion of cases there are above or below the Z scores you then enter.