| Field | Before | After |
|---|---|---|
| Field Study Withdrawn | Before | After No |
| Field Intervention Completion Date | Before | After October 31, 2017 |
| Field Data Collection Complete | Before | After Yes |
| Field Final Sample Size: Number of Clusters (Unit of Randomization) | Before | After 197 |
| Field Was attrition correlated with treatment status? | Before | After No |
| Field Final Sample Size: Total Number of Observations | Before | After 197 |
| Field Final Sample Size (or Number of Clusters) by Treatment Arms | Before | After 61 control, 72 output motivation treatment, 64 input motivation treatment |
| Field Public Data URL | Before | After https://library.ucsd.edu/dc/object/bb70016196 |
| Field Is there a restricted access data set available on request? | Before | After No |
| Field Program Files | Before | After Yes |
| Field Program Files URL | Before | After https://library.ucsd.edu/dc/object/bb70016196 |
| Field Data Collection Completion Date | Before | After October 31, 2017 |
| Field Is data available for public use? | Before | After Yes |
| Field | Before | After |
|---|---|---|
| Field Paper Abstract | Before | After Digitization has facilitated the proliferation of crowd science by lowering the cost of finding individuals with the willingness to participate in science without pay. However, the factors that influence participation and the outcomes of voluntary participation are unclear. We report two findings from a field experiment on the world’s largest crowd science platform that tests how voluntary contributions to science are affected by providing clarifying information on either the desired outcome of a scientific task or the labor requirements for completing the task. First, there is significant heterogeneity in the motivations and ability of contributors to crowd science. Second, both of the information interventions lead to significant decreases in the quantity and increases in the quality of contributions. Combined, our findings are consistent with the information interventions improving match quality between the task and the volunteer. Our findings suggest that science can be democratized by engaging individuals with varying skill levels and motivations with small changes in the information provided to participants. |
| Field Paper Citation | Before | After Lyons E, Zhang L (2019) Trade-offs in motivating volunteer effort: Experimental evidence on voluntary contributions to science. PLoS ONE 14(11): e0224946. https://doi.org/10.1371/journal.pone.0224946 |
| Field Paper URL | Before | After https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0224946#sec008 |