For which measurement scale must the change in the attribute measured among assigned numbers be equal?
A)Interval scale
B)Ratio scale
C)Ordinal scale
D)Both a and b

Question

Quizplus · Accepted Answer

The interval and ratio scales both require that the change in the attribute measured among assigned numbers be equal. The interval scale has equal intervals between values but no true zero point, while the ratio scale has both equal intervals and a true zero, allowing for the calculation of ratios.

For Which Measurement Scale Must the Change in the Attribute