SNAP Applicability Scorecard

Evidence Decision Weight Assessment
Validity asks: did the study measure what it claims? Applicability asks: how much decision weight should I assign this evidence for my context? New here? Read the full SNAP Applicability Scale for level definitions, thresholds, and a worked example.
Provenance note: higher P is not better. This axis measures distance from unmediated reality, not quality. P4 (experimental) is more constructed than P1 (observed), but often produces stronger attribution. These are independent properties. Select multiple P levels for hybrid data; the (H) flag attaches automatically.
Evidence Currency
Relative to the domain's rate of change, not calendar age. In AI tooling a generation is 12 to 18 months.
Replication
Independently confirmed by another team, context, or population? Affects policy and standards thresholds.
SNAP Signature
Modifiers
Mechanism Clarity
Downside Risk
Computed Evidence Grade Rate all four axes to compute