The testing methodology for measuring parametric memory presence: disable retrieval, ask identity/domain/vocabulary questions, score accuracy and confidence. Parametric recall protocol operationalizes the zero-shot query concept into a repeatable measurement. Execute quarterly with consistent question sets across multiple AI models. Scoring: 1 = accurate and confident, 0.5 = accurate but hedged, 0 = inaccurate or omitted. Aggregate score is parametric recall rate. Below 50% indicates parametric absence; above 75% indicates parametric presence. Parametric recall rate is a lagging indicator (reflects training-time corroboration, not current corroboration).