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Reports
4 waves · 2 studies
|
Ballot support, comprehension and media trust
Executive summary
13 of 16 treatment videos showed detectable ballot support differences
Every wave · Massachusetts general adults — not verified likely voters · separate samples
Wave 1
Five of six videos showed detectable ballot choice differences; none showed detectable comprehension differences
October 2–7, 2026 · 3,600 respondents (3,564 weighted) · six treatment videos plus placebo
Wave 2
Four of four videos showed detectable ballot support differences; three showed detectable comprehension differences
October 12–15, 2026 · 2,400 respondents (2,371 weighted) · four treatment videos plus placebo
Wave 3
Four of six videos showed detectable ballot support differences; one showed detectable comprehension differences
October 29, 2026 · 2,464 simulated respondents (2,464 weighted) · six treatment videos plus placebo
Open Primaries Message Test
One of four videos showed detectable ballot support differences; three showed detectable comprehension differences
October 26–29, 2026 · 2,503 respondents (2,503 weighted) · four treatment videos plus placebo
Methodology
How every report tests a video against its own placebo, and how to read what it found
Design · lift · detectable · weighting · subgroups · sources