Researcher Observation and Physical Activity Measurement
Author Information
Author(s): König Laura M., Pasko Kristen, Baga Kiri, Harsora Raj, Arigo Danielle
Primary Institution: University of Vienna
Hypothesis
Does researcher observation influence reactivity in experienced physical activity trackers?
Conclusion
Introducing researcher observation does not significantly change physical activity levels in experienced users of monitoring devices.
Supporting Evidence
- Daily step counts did not change significantly between the two reporting periods.
- Patterns of step counts differed by gender and starting level of physical activity.
- Participants with lower pre-study activity levels increased their steps after enrollment.
Takeaway
When people who already track their steps know a researcher is watching, they don't change how much they walk.
Methodology
Participants recorded their daily steps for two weeks before and after researcher observation was introduced.
Potential Biases
Potential bias due to the homogeneity of the sample, primarily consisting of women and white participants.
Limitations
The study relied on self-reported data and varied accuracy of personal monitoring devices.
Participant Demographics
71% women, average age 30.47, predominantly white.
Statistical Information
P-Value
p=0.388
Statistical Significance
p>0.05
Digital Object Identifier (DOI)
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