As soon as you do anything involving t or F (like test a hypothesis or construct a confidence interval), there is a normality assumption. As Stuart notes, computing the r requires no distribution assumptions. Of course the same is true of the mean. Then again, r is really just a special mean.
Cheers, Karl W. -----Original Message----- From: Stuart McKelvie [mailto:smcke...@ubishops.ca] Sent: Monday, November 11, 2013 1:47 PM To: Teaching in the Psychological Sciences (TIPS) Subject: RE: [tips] What to do with skewed data Dear Tipsters, Although the Pearson coefficient does not assume normality, an alternative solution might be to computer a non-parametric coefficient such as Spearman's rho or Kendall's tau. Sincerely, Stuart ______________________________ "Recti Cultus Pectora Roborant" Stuart J. McKelvie, Ph.D., Department of Psychology, Bishop's University, 2600 rue College, Sherbrooke (Borough of Lennoxville), QC J1M 1Z7, Canada. "Floreat Labore" ______________________________ --- You are currently subscribed to tips as: wuens...@ecu.edu. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13060.c78b93d4d09ef6235e9d494b3534420e&n=T&l=tips&o=30027 or send a blank email to leave-30027-13060.c78b93d4d09ef6235e9d494b35344...@fsulist.frostburg.edu --- You are currently subscribed to tips as: arch...@jab.org. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13090.68da6e6e5325aa33287ff385b70df5d5&n=T&l=tips&o=30031 or send a blank email to leave-30031-13090.68da6e6e5325aa33287ff385b70df...@fsulist.frostburg.edu
