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This tutorial summarizes some of the widely known limitations of tests of statistical significance and then focuses on extracting measures of variation accounted for as a supplement to significance testing. Computation details are presented for research consumers. Some cautions in interpreting these measures are also reviewed.
KEY WORDS: statistical tests, probability, variation accounted for, eta/omega squared
Submitted on August 12, 1992
Accepted on March 25, 1993
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