← All evidence-quality guidesEVIDENCE QUALITY
Negative evidence
Record where and when the symptom did not occur because absence under defined conditions can separate pathways.
01Low confidence
02Useful signal
03Repeat under controlled conditions
04Strong enough for professional review
DEEP GUIDES
Use the full method.
Evidence qualityNegative evidence: quality framework
Record where and when the symptom did not occur because absence under defined conditions can separate pathways. This guide defines evidence checks, confidence language, limitations and a professional review threshold.
Read field guide →Evidence qualityNegative evidence: field application
Record where and when the symptom did not occur because absence under defined conditions can separate pathways. This guide defines evidence checks, confidence language, limitations and a professional review threshold.
Read field guide →