Question

Fahrenheit scale is an example of

• A. Nominal scale
• B. Ordinal scale
• C. Interval scale
• D. Ratio scale

Hint:

Fahrenheit and Celsius scales are Interval scales (arbitrary zero); Kelvin scale is a Ratio scale (true absolute zero).

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Stanley Smith Stevens classified measurement scales into four levels: Nominal, Ordinal, Interval, and Ratio.

Step 2: Detailed Explanation:
1. Interval Scale: Has equal numerical distances between intervals and an arbitrary (relative) zero point rather than an absolute true zero.
Temperature measured in degrees Fahrenheit ($^\circ\text{F}$) or Celsius ($^\circ\text{C}$) is a classic interval scale because $0^\circ\text{F}$ does not represent total absence of thermal heat energy.
In contrast, the Kelvin scale is a ratio scale because it has an absolute true zero.

Step 3: Final Answer:
Therefore, the Fahrenheit scale is an example of an Interval scale.