Scratch Lottery Tickets as Incentives for Questionnaires
Author Information
Author(s): Vilhjalmur Finsen, Andreas H Storeheier
Primary Institution: St. Olav's University Hospital, Norwegian University of Science and Technology
Hypothesis
Can scratch lottery tickets serve as a substitute for cash incentives to increase response rates to mailed questionnaires?
Conclusion
Lottery scratch tickets are not an effective substitute for cash as an incentive to respond to a questionnaire.
Supporting Evidence
- Cash incentives significantly increased response rates in previous studies.
- Only the cash group had a statistically significantly higher response rate than controls.
- Women had a higher response rate than men in the study.
Takeaway
The study found that giving people cash makes them more likely to fill out questionnaires than giving them scratch lottery tickets.
Methodology
1500 randomly selected Norwegians aged 40-65 were sent questionnaires with different incentives: scratch tickets or cash.
Potential Biases
Potential bias due to the unequal distribution of gender among groups.
Limitations
The study may not generalize beyond the Norwegian population or to other types of incentives.
Participant Demographics
Norwegians aged 40-65, with a mix of genders.
Statistical Information
P-Value
p < 0.0001
Confidence Interval
95% confidence interval for cash group: 1.612–3.841
Statistical Significance
p < 0.0001
Digital Object Identifier (DOI)
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