Measures of Central Tendency                [use your browser's back button to return to the previous page] 

Mode	The response category with the greatest number of responses. Use the value label to identify it.

 

Median   Md =

; if this calculation produces a fraction, the median is the average of the two nearest cases.

 

Mean

 

Measures of Dispersion

Index of Qualitative Variation            IQV=

 

Decile range

 

Standard Deviation            s =