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| Day | Intervention | Comparison | ||||
|---|---|---|---|---|---|---|
| Reward | Signage | Shopping cart | ||||
| Arrows | Footprints | |||||
| 1 | 17 March 2021 | shopping cart | ||||
| 2 | 18 March 2021 | ✓ | ||||
| 3 | 19 March 2021 | ✓ | shopping cart, signage | |||
| 4 | 20 March 2021 | ✓ | ✓ | |||
| 5 | 24 March 2021 | ✓ | ||||
| 6 | 25 March 2021 | ✓ | ✓ | ✓ | signage, reward | |
| 7 | 26 March 2021 | ✓ | ✓ | ✓ | ✓ | reward |
