UGC NET COMMERCE November 2017(Paper-II) Q16 Multiple Choice Questions

Answer
Comment
Array

Option : A

Explanation : In general, the principles of measurement (scaling) has three characteristics:
1. Numbers are ordered. One number is less than, equal to or greater than another number.
2. Difference between numbers are ordered. The difference between any pair of numbers is greater than, less than or equal to the difference between any other pair of numbers.
3. The number series has a unique origin indicated by the number zero.
The combinations of these characteristics of order, distance and origin provide the following widely used classification of measurement scales:

Scale of Measurement	Characteristics of Measurement	Basic Empirical Operation
∎ Nominal	No order, distance or origin	Determination of categorical information. Numbers only identify groups which cannot be ordered.
∎ Ordinal	Order but no distance or unique origin	Determination of greater or lesser values. Numbers allow ranking but no arithmetic.
∎ Interval	Both order and distance but not unique	Determination of equality of intervals or differences. Intervals between numbers are meaningful.
∎ Ratio	Order, distance and unique origin	Determination of equality of ratios. Intervals between numbers are meaningful and also their ratio as the lowest value is a meaningful zero.