Evidence Strength Scale
7 criteria evaluating the evidential strength of UAP encounter claims. Score range 7–28. NDE parallel: cvNDE (Claimed Veridical Perception Scale).
Purpose
The UAP Evidence Strength Scale evaluates the evidential strength of encounter claims within first-person accounts or detailed reports. It accepts the account as presented — evaluating the quality of claims, not investigating truth.
An encounter claim carries greater evidential strength when the witness has credibility context, the observation was clear and sustained, details are specific, the account is corroborated, the experience was unexpected, physical effects were documented, and the report preceded potential contamination.
The 7 Criteria
Witness Credibility Context
What is the credibility context of the primary witness?
Professional training in observation, official duty context, and multiple independent witnesses all increase credibility weight. Hostile witnesses (skeptics, people whose careers could be damaged) rate higher.
Perceptual Clarity
How clear and detailed was the observation itself?
Duration, distance, and conditions all matter. Multiple sensory channels (visual + auditory + physical sensation) indicate a richer perceptual event.
Specificity of Details
How specific and potentially verifiable are the reported details?
Numbers, exact times, GPS coordinates, and proper names rate highest. Details that would be impossible to fabricate without investigation score 4.
Corroboration
Is the account supported by other witnesses or independent evidence?
Independent corroboration — especially from strangers or instruments — dramatically reduces the probability of fabrication or misidentification. Often the strongest single indicator.
Unpredictability
Could the experience have been anticipated, sought, or fabricated?
Encounters that contradict the witness's worldview or occur during unrelated professional duty carry the greatest evidential weight. CE5 sessions, skywatches = expected context.
Physical Effects
Were there measurable physical effects on the witness or environment?
Observable effects that others could confirm rate higher than subjective feelings. Effects documented by third parties (medical records, equipment readings) rate highest.
Temporal Precedence
When was the experience first reported relative to public knowledge and potential contamination?
An account documented or told to others BEFORE the witness was exposed to similar stories carries much greater evidential weight. Official reports provide timestamped documentation.