Comparison of Coefficients of Variation
Performs a test for the comparison of two coefficients of variation (from independent samples), expressed as a percentage.
This test is not performed on data in the data table, but on statistics you enter in a dialog box.
- Enter the two coefficients of variation, expressed as percentages, and the corresponding number of cases.
When the calculated P value is less than 0.05, the conclusion is that the two coefficients of variation are significantly different.
SciStat.com uses the test by Forkman, 2009.
- Forkman J (2009) Estimator and tests for common coefficients of variation in normal distributions. Communications in Statistics - Theory and Methods 38:233-251.