Yes. But real value to me comes when I get past the headline and into the article, because the study wasn't about "shouting." This is telling: The leftist headline writer thinks having an opinion is "shouting." It only seems that way to him.
"Give 'em Hell, Harry!" Harry Truman replied, "I don't give them Hell. I just tell the truth about them and they think it's Hell."
“Give ‘em Hell, Henry” in 1975 http://news.google.com/newspapers?nid=1499&dat=19750514&id=Nk4aAAAAIBAJ&sjid=bSkEAAAAIBAJ&pg=3281,2005029