Which Measure to Use?
- The mean is the most stable measure and should be used if the distribution is reasonably symmetric and the data is of the interval or ratio level.
- For a highly skewed distribution of the interval, ratio, or ordinal type, the median is often the best measure to use.
- For nominal scales, the mode is the only one that can be used.
- Although is it often helpful to report all of the measures to give the reader more information about the distribution.