Users of Existing Statistics Are Well Advised to

Multiple Choice

Users of existing statistics are well advised to

A) let the availability of data dictate the research question or hypothesis to be addressed.
B) carefully reconstruct the process by which the data were originally assembled.
C) so far as possible, restrict themselves to official data sources where the accuracy and consistency of the data can be assumed.
D) search for the best single indicator rather than rely on multiple indicators of a concept.