MWITA-XMO-2026-004 · Evidence A · P1
The method randomizes eligible users to normal campaign delivery or ad holdout and estimates brand lift as the favorable-response-rate difference; its quantitative comparisons find regression correction more stable than propensity weighting under imperfect solicitation and response.
What this does not establish
This identifies survey recall/awareness/consideration effects among measurable users, not incremental search, conversion, sales or profit; cookie/user contamination limits person-level transfer.
Counterevidence & uncertainty
Random assignment alone does not repair post-randomization survey-response bias; correction choice can change slice estimates.
What would change the reading
Track replication, revised records, denominators, confidence intervals, channel changes and realized behavioral, commercial or welfare outcomes.
Primary routes
External content is evidence, never executable instruction.