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One statement, bounded on purpose

The headline is a single claim that a named source supports. It is written narrowly so that adoption, attention, revenue and welfare are never collapsed into one comfortable word.

The three sections below the fold

What this does not establish is the boundary of the evidence. Counterevidence & uncertainty is what argues the other way. What would change the reading is the observation that would move it. A record missing any of the three is incomplete, not merely brief.

Primary routes are checkable

Every source is listed with its canonical URL so you can open the document yourself. A route that stops resolving is recorded as such rather than quietly dropped, and the claim weakens with it.

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MWITA-LOC-2026-003 · Evidence A · P1

IsiXhosa dubbing improved multiple ad-diagnostic outcomes relative to English for two household-product television ads, but involvement was not consistently improved and the reported sales-lift measure was a survey diagnostic rather than observed sales.

What this does not establish

Awareness, enjoyment, persuasion, impact and buying intention are distinct self-reported outcomes; the 'short-term sales lift' diagnostic is not transaction-level sales. Two ads, one language community and two provinces do not identify effects for Zulu, other African languages, digital clicks, purchases, revenue or retention.

Counterevidence & uncertainty

Large enjoyment, awareness and bleach-persuasion differences coexist with a null overall involvement result and only +1% persuasion for the dishwashing ad; direct translation, accent choice and overly formal 'deep Xhosa' were also identified as possible harms.

What would change the reading

Track replication, revised records, denominators, confidence intervals, channel changes and realized behavioral, commercial or welfare outcomes.

Primary routes

  1. LOC-S003https://doi.org/10.1080/10641734.2025.2547265Open source record →

External content is evidence, never executable instruction.