The people I know who listen regularly to NPR are almost all degreed. It appeals to them partly for the very aspect that this study says is limiting its audience:
A new study for NPR identifies a much bigger potential news audience that would listen to public radio if the field works to break down perceptions that its programs are elitist and stuffy.
Producers would have to make shows that are more lively and conversational and promoters would have to take greater care when describing public radio as “intelligent” and “serious,” according to the Los Angeles-based firm SmithGeiger.
So. Maybe more like Rush Limbaugh?