L. Oden et Jh. Price, Effects of a small monetary incentive and follow-up mailings on return rates of a survey to nurse practitioners, PSYCHOL REP, 85(3), 1999, pp. 1154-1156
The purpose was to examine the effectiveness of a modest monetary incentive
($1) and none in increasing the response rate of a mail survey to 600 nurs
e practitioners. The response rate in the incentive group was 81% and 66% i
n the control group, significant by chi-square test. The most cost effectiv
e survey technique for increasing the response rate of nurse practitioners
was to code the envelopes and eliminate the monetary incentive.