Adjusted cell and marginal means (dependent variable: willingness to participate with no payment*)
| Payment level | Risk level | Row mean | ||
|---|---|---|---|---|
| Low | Medium | High | ||
| *Assessed using a 10 point scale, with 10 being “I would definitely participate even if I was not paid”. | ||||
| Significance: the main effect of risk level is significant (p<0.05). | ||||
| Within the column means, means without a common superscript are significantly different at the 0.05 level using Dunn’s Method (Bonferroni). | ||||
| $350 | 2.50 | 1.84 | 1.52 | 1.95 |
| $800 | 2.24 | 2.20 | 1.44 | 1.96 |
| $1800 | 2.51 | 2.33 | 1.79 | 2.21 |
| Column mean | 2.42a | 2.12a,b | 1.58b | |