The instrument most appropriate to insure at least 90 percent returns from a rather small sample of university faculty.
A) personal interview
B) telephone interview
C) mailed questionnaire
D) directly administered questionnaire

Question

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The Answer of The instrument most appropriate to insure at least 90 percent returns from a rather small sample of university faculty.
A) personal interview
B) telephone interview
C) mailed questionnaire
D) directly administered questionnaire

The Instrument Most Appropriate to Insure at Least 90 Percent