A mail/telephone technique for collecting primary data
1978
Smith, R.W. | Conrad, J.M. | Storey, D.A.
A mail/telephone technique is discussed which achieved a 79 percent response rate at a cost per usable survey which was only about 50 percent above the general average costs for using mailed questionnaires. with proper follow up techniques this method is capable of yielding even higher response rates at a cost far below personal, face to face interviews.
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