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st: RE: nonparametric tests for variance

From   Mike Lacy <>
Subject   st: RE: nonparametric tests for variance
Date   Fri, 04 Feb 2005 06:58:57 -0700

There is something called the Fligner-Killeen test, which has a bit of messy arithmetic but is nevertheless straightforward. It and numerous other tests for differences in variation (actually relative variation) are documented and carefully compared w.r.t. Type I and Type II error in:

Steven M. Donnelly and Andrew Kramer. 1999. "Testing for multiple species in fossil samples: An evaluation and comparison of tests for equal relative variation." American Journal of Physical Anthropology. 108: 507-529.

Mike Lacy
Fort Collins CO USA
(970) 491-6721 office

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