Primary Data Secondary Data
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properties of order and equal distance between points and withmutually exclusive and exhaustive categories; data that
incorporate equally of interval the distance between one measure and next measure. Ratio scale is scale with properties
or categorization, order, equal intervals and unique origin; number used as measurements havenumeric value.
Table 2.3 Measurement Scales
Type of Scale Characteristic of Data
Basic Empirical Operation
Example Nominal
Classification but not order, distance or natural origin
Determination of Equity
Gender male, female
Ordinal Classification and order, but
not distance, or natural origin
Determination of greater
or lesser
value Doneness of
meatwell, medium well, medium rare
Interval Classification, order, and
distance but not natural origin Determination of
equality of intervals or
differences Temperature in
Degrees
Ratio Classification,
order, and
natural Origin
Determination of equality of ratio
Age in years
Source: Cooper 2007:312.
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