I found an interesting February 2011 article at the website First Things about evangelicalism in America:
Evangelicalism isn’t shrinking and the young are not becoming liberals
I wish social scientists were more rigorous and precise in their questioning/research. The same goes for reporters.
Question Evolution! Campaign
15 Questions for evolutionists
Responses to the 15 Questions: part 1 - Questions 1-3
Responses to the 15 Questions: part 2 - Questions 4–8
Responses to the 15 Questions: part 2 - Questions 9-15