Measures of Central Tendency

These are statistics that attempt to describe typical scores that reflect how the data is similar. The average is a commonly used term; in statistics this includes 3 different expressions: the mean, median and mode.

The appropriateness of which measure to use depends on the data type (see below), and its use:

Data type Average
  Mode Median Mean
Nominal tick    
Ordinal tick tick  
Interval/Ratio tick tick tick

Note: In addition it is good practice to quote one or more of these statistics with the relevant measure of dispersion.