Inventory: A has population, counts, periods, and limitations but no random assignment. B lacks definitions, denominators, assignment, and uncertainty and has a commercial interest. C supplies randomized method, population, comparison, and interval; publication review status is unknown. D supplies a local-sector baseline but neither adult-only population nor intervention.
Aligned effect claim: A reports a 7-percentage-point period difference; C estimates a 5-point randomized difference with 95% CI 1-9. These are compatible/partial agreement: direction and point estimates align, but A cannot attribute effect and C's interval includes effects below the 3-point materiality threshold. They do not jointly prove the local effect. B's “18%” is non-comparable because relative versus percentage-point meaning, denominator, and method are absent; it is not direct contradiction or corroboration. D's 47% is independent/non-comparable: it describes a different mixed-age population with no reminders, so it cannot conflict with A/C.
Stable findings: randomized evidence C supports a possible positive effect, with uncertainty spanning below and above the operational threshold; local A supplies feasibility and a descriptive signal, not causation. Genuine contradictions: none identifiable from supplied text. Unresolved: transfer from four urban libraries to this library, outcomes for patrons without mobile numbers, message timing, opt-outs, and staff workload.
Decision implication: the evidence supports designing a larger local randomized test, not permanent rollout or a promised effect size. Verify C's full protocol/correction status first; ask B for definitions only if it would affect design; use A to set local guardrails; do not use D as an effect estimate. Coverage: A→local descriptive signal; B→unverifiable non-comparable claim; C→effect evidence; D→context only.