The participants in a study are classified as high, medium, or low in self-esteem. What measurement scale is being used to classify self-esteem?

The participants in a study are classified as high, medium, or low in self-esteem. What measurement scale is being used to classify self-esteem?

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

Answer: (B)

This question centers on how classification scales capture order. labeling people as high, medium, or low self-esteem creates a clear ranking: low < medium < high. But we don’t assume the differences between those levels are equal or that there’s a true zero point. That combination—an inherent order without guaranteed equal intervals or a true zero—defines an ordinal scale. Nominal would have categories without any inherent order (like hair color). Interval would have meaningful, equal distances between values but no true zero (like temperature in Celsius). Ratio would have both meaningful equal distances and a true zero (like height or weight).

This question centers on how classification scales capture order. labeling people as high, medium, or low self-esteem creates a clear ranking: low < medium < high. But we don’t assume the differences between those levels are equal or that there’s a true zero point. That combination—an inherent order without guaranteed equal intervals or a true zero—defines an ordinal scale.

Nominal would have categories without any inherent order (like hair color). Interval would have meaningful, equal distances between values but no true zero (like temperature in Celsius). Ratio would have both meaningful equal distances and a true zero (like height or weight).