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R0002/2026-03-13/C008/H1

Statement

ROBIS assesses exactly four domains of bias in systematic reviews, and this is accurate without qualification.

Status

Current: Supported

Supporting Evidence

Evidence Summary
SRC01-E01 Phase 2 covers four domains; domains named explicitly
SRC02-E01 Confirms the same four-domain structure in Phase 2
SRC03-E01 Peer-reviewed listing confirms tool structure

Contradicting Evidence

Evidence Summary

[No evidence found contradicting this hypothesis.]

Reasoning

H1 is supported by multiple authoritative sources including the primary publication and the institutional tool host. The four domains are explicitly named: (1) study eligibility criteria, (2) identification and selection of studies, (3) data collection and study appraisal, and (4) synthesis and findings. No source disputes this count. H1 is the strongest hypothesis.

Relationship to Other Hypotheses

Mutually exclusive with H2. Compatible with H3 -- H1 can be true while acknowledging the three-phase structure that H3 highlights. H3 provides context rather than contradiction.