MWITA-LOC-2026-010 · Evidence A · P1
In code-switched slogans, a majority-English base improved slogan attitude, but a majority-Spanish base improved purchase intention; recall depended on the interaction between base language and intensifier language.
What this does not establish
Purchase intention is not completed purchase, conversion, revenue or sales; recall and attitude are distinct. Prolific bilinguals, one slogan treatment and dissertation evidence do not establish campaign-level performance or effects among Latin American residents.
Counterevidence & uncertainty
The version that improved slogan attitude was opposite the version that improved purchase intention, and exposure reduced general attitudes toward code-switching despite some positive focal outcomes.
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.