| testtwice-package | Testing One Hypothesis Twice in Observational Studies | 
| bmhranks | One-step and Two-step Signed Ranks. | 
| multrnk | A family of Signed Ranks for Matched Pair Differences. | 
| smokerlead | Pair Differences in Blood Lead Levels in 679 Matched Pairs of One Smoker and One Control. | 
| testtwice | Computes the P-value and Sensitivity Bound for Testing Twice. | 
| tt | Computes the P-value and Sensitivity Bound for Testing Twice From a User Supplied Matrix. |