Some Exact Tables For The Squared Ranks Test

W. J. Conover, Ronald L. Iman

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Since the squared ranks test was first proposed by Taha in 1964 it has been mentioned by several authors as a test that is easy to use, with good power in many situations. It is almost as easy to use as the Wilcoxon rank sum test, and has greater power when two populations differ in their scale parameters rather than in their location parameters. This paper discuss the versatility of the squared ranks test, introduces a test which uses squared ranks, and presents some exact tables.

Original languageEnglish
Pages (from-to)491-513
Number of pages23
JournalCommunications in Statistics - Simulation and Computation
Issue number5
StatePublished - Jan 1 1978


  • nonparametric test for variances
  • ranks test
  • squared
  • tables for squared ranks test


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