Chocolate Bar as an Incentive for Physiotherapists
Author Information
Author(s): Jamtvedt Gro, Rosenbaum Sarah, Dahm Kristin Thuve, Flottorp Signe
Primary Institution: Norwegian Knowledge Centre for the Health Services
Hypothesis
Does a bar of dark chocolate increase the response rate among physiotherapists in a study on knee osteoarthritis?
Conclusion
A bar of dark chocolate did not increase the response rate in a prospective study of physiotherapy performance.
Supporting Evidence
- The study involved 2798 physiotherapists, with 1027 in each group.
- Only 510 physiotherapists responded, with 280 completing the data-collection form.
- The response rates were 13.8% for the chocolate group and 13.4% for the control group.
Takeaway
Giving physiotherapists a chocolate bar didn't make them more likely to fill out a survey about their work.
Methodology
Physiotherapists were randomly assigned to receive either a chocolate bar with a survey or just the survey to measure response rates.
Potential Biases
Non-response bias may have affected the results due to low participation.
Limitations
The overall response rate was very low, and the chocolate may not have been a strong enough incentive.
Participant Demographics
Norwegian physiotherapists in private practice.
Statistical Information
Confidence Interval
95% CI: -3.44 to 2.6
Digital Object Identifier (DOI)
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