C004 — Assessment¶


Research	R0052 — Methodology Claims
Run	2026-03-31
Claim	C004

BLUF¶

The claim is accurate. The IPCC Guidance Note on Uncertainty confirms the two-axis model with exactly the terms stated: evidence (Limited/Medium/Robust) and agreement (Low/Medium/High).

Probability¶

Rating: Almost certain (95-99%)

Confidence in assessment: High

Confidence rationale: Multiple authoritative sources confirm the claim. Evidence is consistent across primary and secondary sources.

Reasoning Chain¶

IPCC guidance confirms two-axis confidence model with Limited/Medium/Robust evidence and Low/Medium/High agreement [SRC01-E01, High reliability, High relevance]
Academic analysis confirms the IPCC two-axis confidence framework [SRC02-E01, High reliability, High relevance]
JUDGMENT: All sources consistently support the claim. No contradictory evidence was found.

Evidence Base Summary¶

Source	Description	Reliability	Relevance	Key Finding
SRC01	Guidance Note for Lead Authors of the IPCC Fifth A	High	High	IPCC guidance confirms two-axis confidence model with Limite
SRC02	Confidence levels and likelihood terms in IPCC rep	High	High	Academic analysis confirms the IPCC two-axis confidence fram

Collection Synthesis¶

Dimension	Assessment
Evidence quality	Robust — primary authoritative sources
Source agreement	High — all sources consistent
Source independence	High — different publication types
Outliers	None identified

Detail¶

The evidence consistently confirms the claim. All sources agree on the specific details asserted.

Gaps¶

Missing Evidence	Impact on Assessment
Direct access to some primary sources was limited	Low — secondary sources confirm findings consistently

Researcher Bias Check¶

Declared biases: The researcher favors structured methodology frameworks.

Influence assessment: Low risk for this factual claim.

Cross-References¶

Entity	ID	File
Hypotheses	H1, H2, H3	`hypotheses/`
Sources	SRC01, SRC02	`sources/`
ACH Matrix	—	ach-matrix.md
Self-Audit	—	self-audit.md