Match List I with List II

List I (Scales of Measurement)	List II (Definition)
A. Nominal Scale	I. It classifies observation or objects on the basis of the extent or magnitude of quality
B. Ordinal Scale	II. Has equal intervals between the units of measure
C. Interval Scale	III. The observation is categorized on the basis of gender, streams etc.
D. Ratio Scale	IV. It has a true zero point, as well as equal intervals.

Choose the correct answer from the options given below:

Correct option is B

Scales of measurement categorize variables into four distinct hierarchy levels based on their mathematical properties, where the correct matching combination is A-III, B-I, C-II, D-IV (Nominal Scale -> Categorizes on the basis of gender, streams, etc.; Ordinal Scale -> Classifies on the basis of magnitude or rank; Interval Scale -> Has equal intervals between units; Ratio Scale -> Has a true zero point and equal intervals).
Information Booster:
· Nominal Scale (A-III): Functions as the simplest level of measurement designed purely for naming, labeling, or classifying objects into mutually exclusive categories without any inherent quantitative value or order (e.g., classifying individuals by gender, academic streams, eye color, or room numbers).
· Ordinal Scale (B-I): Classifies observations based on the extent, magnitude, or rank order of a quality, indicating that one item has more or less of a attribute than another without establishing the precise mathematical distance between those ranks (e.g., ranks in a class, Likert agreement scales, socio-economic status).
· Interval Scale (C-II): Possesses the property of equal, standardized intervals between adjacent units of measure, allowing for meaningful comparison of differences, though it lacks an absolute zero point (e.g., Celsius temperature scale, IQ scores).
· Ratio Scale (D-IV): Represents the highest, most comprehensive level of measurement that features equal intervals alongside a true, absolute zero point, which signifies the complete absence of the measured attribute and permits direct ratio calculations like "twice as much" (e.g., height, weight, income, age).