E02¶


Research	R0051 — Fact-Checking Gap
Run	2026-03-31
Query	Q001
Source	SRC04
Evidence	SRC04-E02
Type	Reported

Fact-checkers prioritize primary sources and use implicit evidence quality hierarchy.

URL: https://arxiv.org/html/2502.09083v1

Extract¶

Warren et al. report that fact-checkers prioritize primary sources over secondary ones. A participant stated: "We try to find always the most primary, most original source" and emphasized that "the more raw the data, the better." Their evidence assessment involves "rigorous evaluation of source credibility, methodology, timeframes, and whether data has been modified."

This describes an implicit evidence quality hierarchy (primary > secondary, raw data > processed) that is practiced but not formalized. The hierarchy operates through professional judgment and training rather than through a structured framework with defined levels.

Relevance to Hypotheses¶

Hypothesis	Relationship	Strength
H1	Contradicts	The hierarchy is implicit and practitioner-dependent, not formalized
H2	Supports	Partial evidence quality assessment exists but is not structured into a framework
H3	Contradicts	Practitioners clearly assess evidence quality, even if informally

Context¶

The gap between practitioner capability and formal methodology is notable. Fact-checkers perform sophisticated evidence quality assessment through professional judgment, but this assessment is not codified into a replicable, standardized framework that others could adopt.