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A mail panel is a representative sample of people who have agreed to participate in a limited number of mail surveys each year.
Q3: The tendency for new members of a
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Q19: The best solution to minimizing interview errors
Q21: The order of discussion in a focus
Q29: Executive interviewing involves interviewing business people at
Q30: The main limitation of the reference databases
Q31: The advantage of randomization in experimental control
Q42: Use intuition and common sense to revise
Q49: Which of the following is not a