Table 4.
Power (%) for comparing three methods under different scenarios for zero-inflated Poisson response with mixing probability modeled by logistic regression with a nonlinear predictor for the simulation study.
| Sample Size |
α = −2.94 | α = −2.20 | α = −1.73 | α = −1.39 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Vuong | Naive | New | Vuong | Naive | New | Vuong | Naive | New | Vuong | Naive | New | |
| 50 | 16.25 | 2.93 | 12.92 | 13.55 | 8.89 | 25.47 | 19.54 | 18.19 | 42.35 | 30.93 | 29.11 | 58.51 |
| 100 | 11.35 | 5.26 | 18.32 | 17.14 | 18.82 | 41.67 | 38.43 | 39.36 | 65.93 | 62.82 | 60.71 | 84.10 |
| 200 | 10.50 | 10.12 | 28.71 | 40.46 | 38.72 | 65.59 | 77.78 | 71.20 | 89.17 | 95.30 | 91.66 | 98.19 |
| 500 | 31.41 | 26.10 | 52.89 | 92.31 | 81.58 | 94.10 | 99.82 | 98.71 | 99.85 | 100.00 | 99.99 | 100.00 |
| 1000 | 76.86 | 53.02 | 78.24 | 99.87 | 98.65 | 99.80 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 |