The NIA Interventions Testing Program's lifespan-testing protocol was designed to detect a 10% change in mean lifespan, in either sex, with 80% statistical power when data from as few as two of the three testing sites were pooled.
Notes on verification
Confirmed by multiple independent, authoritative sources including the official NIA program page, a peer-reviewed eBioMedicine/Lancet article, and a grant description from an ITP investigator, all consistently corroborating the statistical design details. [tier=silver indep_score=0.925 clusters=2 claim_tier=notable]
Sources
- NIA Interventions Testing Program: Investigating Putative ... (seed:health_and_medicine)
- https://www.thelancet.com/article/S2352-3964(16)30554-0/fulltext (corroboration)
- https://grantome.com/grant/NIH/U01-AG022303-17 (corroboration)