As part of research study, a researcher decides that she will use the number of pieces of junk mail that a family receives each week as an indicator of how wealthy the family is. If we do not have a good reason to believe that these two things are related, her measure of family wealth is
A. unreliable.
B. not valid.
C. unstandardized.
D. multidimensional.
Answer: B
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What will be an ideal response?
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