The Difference Between an Interval and a Ratio Variable Is

Multiple Choice

The difference between an interval and a ratio variable is that:

A) ratio scales indicate only difference, but interval scales indicate difference and order.
B) interval scales indicate only difference, but ratio scales indicate difference and order.
C) on a ratio scale, the number 0 corresponds to an absence of the quality, but this is not true for an interval scale.
D) there are equal intervals between points on an interval scale, but this is not true for a ratio scale.