Card 77 / 104: The interval scale has numbers scaled at equal distances but has no absolute zero point. Most tests used in school fall into this category. You can add and subtract using interval scales but cannot multiply or divide. An example of this would be
A) that an IQ of 70 is 70 points below an IQ of 140, yet a counselor could not assert that a client with an IQ of 140 is twice as intelligent as a client with an IQ of 70
B) that a 20 lb weight is half as heavy as a 40 lb weight
C) that a first-place runner is three times as fast as the thirdplace finisher.
D) that a baseball player with number 9 on his uniform can get 9 times more hits than player number 1

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