Confidence Intervals for Mean Absolute Deviations
The mean absolute deviation is a simple and informative measure of variability. Approximate confidence intervals for mean absolute deviations in one-group and two-group designs are derived and are shown to have excellent small-sample properties under moderate nonnormality. Sample size planning formulas are derived.
Bonett, Douglas G.; and Seier, Edith. 2003. Confidence Intervals for Mean Absolute Deviations. American Statistician. Vol.57(4). 233-236. https://doi.org/10.1198/0003130032323 ISSN: 0003-1305