If a difference between scores of 3 and 4 is the same as a difference between scores of 15 and 16,the variable being measured is
A)equal-interval.
B)differential.
C)non-differential.
D)rank-order.

Question

Quizplus · Accepted Answer

If the difference between scores of 3 and 4 is the same as a difference between scores of 15 and 16, this indicates that the scale being used to measure the variable has equal intervals between the numbers. In other words, the difference between any two consecutive numbers on the scale is consistent. This is consistent with an equal-interval measurement scale. Differential and non-differential scales do not necessarily have equal intervals between the numbers, and rank-order scales only indicate order or rank without indicating equal differences between the numbers.

If a Difference Between Scores of 3 and 4 Is