TWO-SPREAD COMPARISON RECORD Exact deck or pool; distinct physical identities N: First spread size and all identities in assigned order: Were all cards returned before the second spread? Second spread size and all identities in assigned order: Uniform ordered selection and between-spread independence: justified / assumed / unknown: Identity definition; orientation recorded separately: Question defined before comparison: shared names / all same names / same positions: Intersection: list shared identities once each: Number shared K: Which assigned positions match, if that is a separate question? Reference-model expression and assumptions: Missing, duplicate, extra or unknown selection rules: Observation versus optional interpretation: One useful check or finish: