Question

Before taking any measurement one should measure ___________?
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Answer 1

Answer:

Wear undergarments or bodysuit when measuring. Use tape measure that does not stretch. Tie a string around your natural waistline. Pull the tape snug, but not too tight.

Answer 2

Explanation:

Measurement is the process of observing and recording the observations that are collected as part of a research effort. ... In Levels of Measurement, I explain the meaning of the four major levels of measurement: nominal, ordinal, interval and ratio.