A therapist measures the difference between two clients. If the therapist can say that Rebecca's score is higher than Sarah's, but can't specify how much higher, the measuring scale used must have been a(an)_______ scale.
A) nominal
B) ordinal
C) interval
D) ratio

Question

Quizplus · Accepted Answer

An ordinal scale allows for ordering of the variables, but does not have equal distances between each variable. Therefore, the therapist can determine which client scored higher, but cannot quantify the difference between them. A nominal scale only allows for categorization, while an interval scale has equal distances but does not have a true zero point. A ratio scale has equal distances and a true zero point.

A Therapist Measures the Difference Between Two Clients