I've used coefficient of variation to compare changes in variability post-intervention for a continuous biomechanical variable (proportion of pelvic tilt to hip rotation in short movement task). I've fielded comments that contend CoV is limited to variables with a true zero and wouldn't be useful to describe this proportional measure. Any input would be helpful. Thanks!
ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.