| Titre : | Can incentives undermine intrinsic motivation to participate in epidemiologic surveys ? (2010) |
| Auteurs : | WENEMARK (Marika) : SWE. Centre for Public Health Sciences. Ostergötland County Council. Linköping. ; Annika-Lindahl NORBERG ; Asa VERNBY ; Childhood Cancer Research Unit. Department of Woman and Child Health. Karolinska Institutet. Stockholm. SWE |
| Type de document : | Article |
| Dans : | European journal of epidemiology (vol. 25, n° 4, 2010) |
| Pagination : | 231-235 |
| Langues: | Anglais |
| Mots-clés : | Incitation ; Motivation ; Participation ; Epidémiologie ; Enquête épidémiologique ; Enquête ; Surveillance ; Collecte information ; Taux ; Autoquestionnaire ; Autoévaluation ; Questionnaire ; Homme |
| Résumé : | [BDSP. Notice produite par INIST-CNRS EoAFlR0x. Diffusion soumise à autorisation]. Response rates to surveys are decreasing. The purpose of this study was to evaluate the use of lottery tickets as incentives in an epidemiologic control group. A self-administered questionnaire was sent to parents in the municipality of Stockholm, Sweden, who were to be used as a control group in a study addressing stress in parents of children with cancer. A stratified random sample of 450 parents were randomized into three incentive groups : (a) no incentive ; (b) a promised incentive of one lottery ticket to be received upon reply ; (c) a promised incentive of one lottery ticket to be received upon reply and an additional lottery ticket upon reply within 1 week. The overall response rate across the three groups was 65.3%. The response rate was highest in the no incentive group (69.3%) and lowest in the one plus one lottery ticket group (62.0%). In a survival analysis, the difference between the two response curves was significant by the log-rank test (P=0.04), with the no incentive group having a shorter time to response than the incentive group. Our findings suggest that the use of lottery tickets as incentives to increase participation in a mail questionnaire among parents may be less valuable or even harmful. Incentives may undermine motivation in studies in which the intrinsic motivation of the respondents is already high. |
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