Christianity Today reports a forthcoming study by sociologist Philip Schwadel that there is a growing “intensity gap” between Protestants and Catholics, “with some 56 percent of evangelicals describing themselves as ‘strongly affiliated’ with their religion compared with 35 percent of Catholics.”

At the First Things blog On the Square, James Rogers explains that the gap in enthusiasm could be growing because less-committed evangelicals are dropping their affiliation to evangelicalism altogether, a finding that fits with Pew’s October report that “in the last five years alone, the unaffiliated have increased from just over 15% to just under 20% of all U.S. adults.”