Mean main effects
| Intervention | Total dish ordered | Dependent variable Net dishes ordered (large 1/small 0.5) | Total meal cost (In yuan) |
|---|---|---|---|
| Clean Your Plate | 6.80 (2.56)** | 5.69 (2.02)** | 296.80 (122.40)** |
| Multiple size option | 7.97 (2.93)** | 5.75 (2.25)* | 304.54 (133.05) |
| Penalties | 6.66 (2.40)** | 5.59 (2.01)** | 293.17 (118.51)** |
| No interventiona | 6.27 (1.953) | 6.27 (1.95) | 324.85 (114.53) |
| Intervention | Total dish ordered | Dependent variable | Total meal cost (In yuan) |
|---|---|---|---|
| Clean Your Plate | 6.80 (2.56) | 5.69 (2.02) | 296.80 (122.40) |
| Multiple size option | 7.97 (2.93) | 5.75 (2.25) | 304.54 (133.05) |
| Penalties | 6.66 (2.40) | 5.59 (2.01) | 293.17 (118.51) |
| No interventiona | 6.27 (1.953) | 6.27 (1.95) | 324.85 (114.53) |
Note(s): Mean comparison to the no intervention state ** significant at >0.001; * significant at >0.01; aTotal dishes and net dishes are identical under the no intervention condition. The numbers reported are means and standard deviations
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