one traditional way of comparing changes in percentages to to transform to z-scores and then subtracting. I think this is what signal-detection people call D-prime.
Elliot Cramer wrote: > On Fri, 11 Jan 2002, Dennis Roberts wrote: > > > > > finally ... i think we are making a mountain out of a molehill in this ... > > to me ... the most important "fact" from the video was that (regardless of > > change and how you define it) ... whites approved of the president to a FAR > > greater extent than blacks ... and, the second most important "fact" was > > that AFTER the event ... the approval ratings for BOTH groups went un > > dramatically > > > > I agree with this; I just don't think that there is any meaningful way of > comparing Black and white increases, given that they start from very > different bases > > ================================================================= > Instructions for joining and leaving this list, remarks about the > problem of INAPPROPRIATE MESSAGES, and archives are available at > http://jse.stat.ncsu.edu/ > ================================================================= ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at http://jse.stat.ncsu.edu/ =================================================================
