Which scale of measurement is being used when comparing achievement test scores of different school systems?
A) Nominal
B) Ordinal
C) Interval
D) Ratio

Question

Quizplus · Accepted Answer

Comparing achievement test scores of different school systems involves using an interval scale of measurement, as the scores are measured on a continuous scale with equal intervals between values. Nominal and ordinal scales are not appropriate for measuring achievement test scores as they do not provide meaningful numerical values or consistent ordering of scores. Ratio scales involve a true zero point, which is not typically relevant in comparing achievement test scores.

Which Scale of Measurement Is Being Used When Comparing Achievement