Table 3 Operating characteristics of two-step procedure for deciding whether or not to pool
| Â | Rejection probability (comparison to SAT) | Response difference (%) | |||||
|---|---|---|---|---|---|---|---|
SAT response (%) | rwCC #1 response (%) | rwCC #2 response (%) | Pooling probabilitya | Conditional on pooling | If always pool | Expected when always pooling | Average when pooling |
80 | 50 | 50 | 0.94 (0.0002) | 0.85 (0.0001) | 0.85 (0.0005) | 30 | 30.01 (0.0001) |
80 | 50 | 60 | 0.87 (0.0003) | 0.70 (0.0002) | 0.71 (0.0005) | 25 | 24.94 (0.0001) |
80 | 50 | 70 | 0.67 (0.0005) | 0.50 (0.0003) | 0.52 (0.0005) | 20 | 19.68 (0.0001) |
80 | 50 | 80 | 0.36 (0.0005) | 0.27 (0.0005) | 0.31 (0.0005) | 15 | 13.96 (0.0001) |