Significantly more likely means its effectiveness is highest on those that wouldn’t normally give up their seat, doesn’t it? There are some unfortunate conclusions you could jump to from there. They say that 44% of people that gave up their seats reported not seeing batman so those conclusions probably aren’t great. They seem to be concluding that that unexpected events can promotes prosociality. I wonder if that is mostly people snapping out of whatever they were doing (like staring at their phone) to actually assess the situation