On 1 Jun 2002 15:56:46 -0700, [EMAIL PROTECTED] (Yvette) wrote: > I conducted a pearson (upper diagonal)/spearman (lower diagonal) > correlation test in SAS. However, the results differ significantly > between the two tests. Can anyone offer any suggestions as to why > these results would differ so much. > > RESULTS OF CORRELATIONS: > > Cash Earn FR AR > Cash .997 -.23(.002) -.97(.000) > Earn .45(.000) -.24(.001) -.98(.000) > FR -.06(.4) -.03(.6) .40(.000) > AR -.02(.7) -.01(.9) .96(.000)
- Here are the problem-correlations without the tab-characters and extra digits, and extra variables. It has already been answered (extreme Pearson r determined by the outliers). I had to edit it in order to read it, and I thought other people might be interested in the original numbers, too. The Kendall rank-correlation is less responsive to the extreme *rank* matches than the Spearman is. But the differences above tell you, already, you want to look at plots or raw numbers. -- Rich Ulrich, [EMAIL PROTECTED] http://www.pitt.edu/~wpilib/index.html . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
