Main effects of participation appraisals on willingness to participate and participation likelihood
| Willingness to participate | |||
| RR | SE | CI | |
| Interest | 1.03*** | 0.01 | 1.01 to 1.05 |
| Enjoyment | 1.02* | 0.01 | 1.00 to 1.03 |
| Effort | 0.98*** | <0.01 | 0.97 to 0.99 |
| Contribution to science | 1.02 | 0.01 | 1.00 to 1.04 |
| | Participation likelihood | ||
| b | SE | ηp2 | |
| Intercept | 57.03*** | 3.35 | – |
| Interest | 2.39*** | 0.57 | 0.029 |
| Enjoyment | 1.87*** | 0.54 | 0.020 |
| Effort | −2.08*** | 0.30 | 0.077 |
| Contribution to science | 1.65*** | 0.52 | 0.017 |
*P<0.05; **P<0.01; ***P<0.001. Enjoyment lower bound is slightly above 1.00 but rounded for display.