E0 — Research Pending
The idea or hypothesis still requires evidence review.
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Understanding Evidence Levels
Evidence level indicates the current strength of supporting evidence. It does not rate the importance or quality of an idea.
Read all evidence levels
E1 — Initial Evidence Identified
Relevant sources or initial evidence have been identified, but effectiveness has not been established.
E2 — Comparable Cases Identified
Documented comparable implementations have been found.
E3 — Measured Implementation Evidence
Measured results exist from one or more relevant implementations.
E4 — Replicated / Evaluated Evidence
More robust or repeated evidence exists across multiple contexts or evaluations.
Maturity describes the stage of implementation. Evidence describes supporting evidence. These are separate classifications.