For data collection to be valid, what must occur?
a. The tool must be thorough.
b. The tool must be unbiased.
c. The tool must measure what it is supposed to measure.
d. The tool must be accurate all of the time.
ANS: C
A
Thoroughness of the tool does not make it valid.
B
A tool should be unbiased, but it will not make it valid.
C
For a tool to be valid, it must measure what it is supposed to measure.
D
The accuracy of the tool is referred to as reliability.
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