Statistical notes for clinical researchers: effect size

It's the effect size, stupid: what effect size is and why it is important. Paper presented at the 2002 Annual Conference of British Education Research Association, University of Exeter, Exeter, Devon, England, September 12-14, 2002. updated 2015 Sep 6. Available from: http://www.leeds.ac.uk/educol/documents/00002182.htm

Sullivan, 2012, J Grad Med Educ, 4, 279, 10.4300/JGME-D-12-00156.1

Effect size (ES). updated 2015 Sep 6. Available from: http://www2.jura.uni-hamburg.de/instkrim/kriminologie/Mitarbeiter/Enzmann/Lehre/StatIIKrim/EffectSizeBecker.pdf