Question

determine the level of measurement of the variable below. year of birth of college students choose the correct answer below. a. ordinal b. interval c. ratio d. nominal

Explanation:

1. Recall the definitions of each level of measurement:

• Nominal: Categories with no inherent order (e.g., gender, eye color).
• Ordinal: Categories with a clear order, but differences between values are not meaningful (e.g., letter grades A, B, C).
• Interval: Numerical values where differences are meaningful, but there's no true zero (e.g., temperature in Celsius, years).
• Ratio: Numerical values with a true zero and meaningful ratios (e.g., height, weight).

1. Analyze "Year of birth":

• Years are numerical, and the difference between years (e.g., 1990 - 1980 = 10 years) is meaningful.
• There's no true zero (the year 0 doesn't represent an absence of time), so it's not ratio.
• It's not nominal (years are numerical, not just categories) or ordinal (differences are meaningful). Thus, it's interval.

Answer:

B. Interval