Shipley developed a NEW test to measure IQ.Using his test,someone with an IQ of 180 would be considered twice as intelligent as someone with an IQ of 90 and someone with an IQ of 90 was three times as intelligent as someone with an IQ of 30.Shipley's test treats IQ as a(n):
A)nominal variable.
B)interval variable.
C)ratio variable.
D)ordinal variable.
E)none of these choices.

Question

Quizplus · Accepted Answer

Shipley's test treats IQ as a ratio variable because it has a meaningful zero point and the ratios between values are meaningful. For example, if someone has an IQ of 60 and someone else has an IQ of 120, the second person is twice as intelligent as the first person.

Shipley Developed a NEW Test to Measure IQ