The following priority rules determine which empirical specifications are collected as IDEAL-preferred:
Based on these rules, the IDEAL-preferred specification ranking is as follows, from highest (1) to lowest (8) preferred specification:
| # | Strata correction | Baseline outcome | Other controls | No other controls |
|---|---|---|---|---|
| 1 | ✓ | ✓ | ||
| 2 | ✓ | ✓ | ||
| 3 | ✓ | ✓ | ✓ | |
| 4 | ✓ | ✓ | ||
| 5 | ✓ | |||
| 6 | ✓ | |||
| 7 | ✓ | ✓ | ||
| 8 | ✓ |
IDEAL Consortium Members: