The use of convenience samples is generally to be avoided because:
A. volunteers are hard to get.
B. they are unlikely to be representative of the intended population.
C. replication is difficult.
D. they are difficult to stratify.
Answer: B
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Fill in the blank(s) with the appropriate word(s).
Which step in the assessment of a discipline problem asks, "What were the circumstances of the problem?"
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What percentage of the homeless population consists of children?
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