DISCIPLINE · 35% of composite
PNAS — Discipline
pnas.org · Academic
Citation Discipline measures how rigorously a source backs each factual claim with verifiable evidence. High-Discipline sources cite primary evidence inline; low-Discipline sources opine without sourcing.
A+·96
A+ · 96
Peer-reviewed by NAS members; rigorous review across all sciences; corrections + retractions public.
What drives this Discipline score
- NAS-affiliated peer reviewThree-track review (NAS member, contributed, direct submission); standardized rigor.
Global rank
#9 of 130
By Discipline across all SourceScore sources
In-category rank
#3 of 19
Among academic sources
Vs. averages
Cat. mean: 91
Global mean: 85
Global mean: 85
+5 above category