Which measurement level best describes the variable $\text{temperature measured in degrees Celsius}$?

• A. $\text{Ordinal}$
• B. $\text{Interval}$
• C. $\text{Ratio}$
• D. $\text{Nominal}$

Answer: (B)

Verified step by step guidance

1. Understand the four common measurement levels: Nominal, Ordinal, Interval, and Ratio. Each level has specific characteristics regarding the type of data and the operations that can be performed on it.
2. Nominal level classifies data into distinct categories without any order (e.g., colors, names). Ordinal level involves categories with a meaningful order but without consistent differences between categories (e.g., rankings).
3. Interval level has ordered categories with meaningful and consistent differences between values, but it lacks a true zero point (e.g., temperature in degrees Celsius or Fahrenheit).
4. Ratio level has all the properties of the interval level, but also includes a true zero point, allowing for meaningful ratios (e.g., height, weight, age).
5. Since temperature in degrees Celsius has meaningful differences between values but no true zero (0°C does not mean 'no temperature'), it fits the Interval level of measurement.