Dear Tipsters,
> -----Original Message----- > From: Karl L. Wuensch > alleged interval data is based on the following scale: > > 0 = Not skated > 1 = Very poor > 2 = Poor > 3 = Average > 4 = Good > 5 = Excellent > 6 = Perfect and faultless > As Karl says, these are not equal intervals. In adidtion, this scale would be questioned by a critical reviewer of any research proposal. 1. "Average" is a relative concept and the other terms are absolute. 2. If you have very poor and poor, you should probably have good and very good. There is a huge jump between good and excellent. 3. I have no problem with unequal number of rating points on the good and poor side, because most skaters will be very good (i/e/, distributions will be negatively skewed with equal numbers of positive and negative ratings). So you might argue for even more on the positive side. What about this as a better scale? 0 = not skated 1 = very poor 2 = poor 3 = adequate 4 = good 5 = very good 6 = excellent 7 = perfect Sincerely, Stuart ___________________________________________________ Stuart J. McKelvie, Ph.D., Phone: (819)822-9600 Department of Psychology, Extension 2402 Bishop's University, Fax: (819)822-9661 3 Route 108 East, Lennoxville, e-mail: [EMAIL PROTECTED] Quebec J1M 1Z7, Canada. Bishop's University Psychology Department Web Page: http://www.ubishops.ca/ccc/div/soc/psy ___________________________________________________ --- You are currently subscribed to tips as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED]
