The preliminary evidence was the basis for the entire study continuing forward. Why would I (or anyone) trust the work that is inherently flawed from the start without excellent cause?
Hell they couldn’t even find a speech GW delivered to minorities.
If you read the actual study, the participants are exclusively college students and anonymous self described white liberals online.
Fwiw, I’ve got a couple statisticians in my Dept within 20 feet and we’re all having a good laugh at how flawed the follow up studies were. We aren’t even wasting time laughing at the campaign speech shit.