An expanded table of probability values for Rao's Spacing Test

Abstract

Rao's Spacing Test is a useful and powerful statistic for testing uniformity with circular and periodic data. Previously published tables of critical values are incomplete, giving critical values only out to p=.1 and n = 200. We extend those tables to n=1000 and for p-values out to 0.9. The extension will enable researchers to better evaluate the confidence with which they are accepting the null hypothesis, and to use the test with larger n.