Via reader JW, an exceptional experiment from Yale:
In a field experiment conducted during trick-or-treating at Halloween, we find that a visual cue of Michelle Obama prompts almost twice as many children age 9 and over to choose fruit over candy, compared to a visual cue of Ann Romney. This provides evidence that Michelle Obama’s campaign to promote healthy eating has succeeded in influencing behavior. No such evidence was found for children age 8 and below.
“impact of Michelle Obama on health [sic] eating choices”
“all authors affiliated with Yale University”
But clearly not affiliated with Yale’s (storied and presumably still distinguished) English Dept.