Alcohol and Alcoholism Vol. 38, No. 5, pp. 437-441, 2003
© 2003 Medical Council on Alcohol
INCENTIVES TO INCREASE PARTICIPATION IN AN INTERNET SURVEY OF ALCOHOL USE: A CONTROLLED EXPERIMENT
Injury Prevention Research Unit, Department of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand
(Received 24 April 2003; first review notified 7 May 2003; in revised form 12 May 2003; accepted 29 May 2003)
Aims: To examine the use of the Internet in a survey of drinking among students, and the effectiveness of incentives to encourage participation. Methods: In a survey of drinking in university students, a random sample of 160 students were randomly assigned to one of four token incentive conditions. All received posted invitations, and reminders by e-mail and telephone. Results: Overall response was 85% and did not differ significantly by incentive condition. Conclusion: Internet surveys are effective in obtaining alcohol use information from students. Minimal incentives may suffice if coupled with intensive follow-up.
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