Kendall's rank correlation coefficient
Kendall's rank correlation coefficient[¦ken·dəlz ¦raŋk ‚kä·rə′lā·shən ‚kō·ə‚fish·ənt]
A statistic used as a measure of correlation in nonparametric statistics when the data are in ordinal form. Also known as Kendall's tau.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.