Correct Answer: B — Ordinal

Levels of Data Measurement:

Level	Properties	Examples	Appropriate Statistics
Nominal	Categories only; no order	Gender, blood type, religion	Mode, frequency, chi-square
Ordinal	Categories with order; unequal intervals	Likert scales, pain scales, education level	Median, percentile, Spearman's rho
Interval	Equal intervals; no true zero	Temperature (°C/°F), IQ scores	Mean, SD, Pearson's r
Ratio	Equal intervals + true zero	Weight, height, blood pressure, age	All statistics including geometric mean

Likert scales are ordinal because while responses are ordered, the distance between categories is not necessarily equal (the difference between 'Agree' and 'Strongly Agree' may not equal the difference between 'Neutral' and 'Agree').