Tests for risk of low-quality discrete choice experiment (DCE) data
| Discrete choice experiment |
Chronic pain (DCE1) |
Breathlessness (DCE2) | Chronic pain (DCE3) | Overall | ||||
| n=517 (%) | n=200 | n=206 | n=923 | |||||
| Incidence of individual low-quality criteria | ||||||||
| Serial non-participation | 7 | 1.4 | 5 | 2.5 | 5 | 2.4 | 17 | 1.8 |
| Dominance | 56 | 10.8 | 28 | 14.0 | 31 | 15.0 | 115 | 12.5 |
| Response time | 74 | 14.3 | 33 | 16.5 | 28 | 13.6 | 135 | 14.6 |
| Cumulative tests failed per individual | ||||||||
| One or more test failed | 115 | 22.2 | 53 | 26.1 | 44 | 21.4 | 209 | 22.6 |
| Two or more tests failed | 19 | 3.7 | 17 | 8.4 | 16 | 7.8 | 49 | 5.3 |
| All three tests failed | 3 | 0.6 | 5 | 2.5 | 4 | 1.9 | 12 | 1.3 |