Do Bishops Use A Different Standard from Pollsters?

Michael New complains that the Pew poll on Roman Catholics in the U.S. does not distinguish between average and serious church members:

The “Public Religion Research Institute” released a fact sheet a few weeks ago on the attitudes of Roman Catholics which had the mainstream media swooning. It found that majorities of Catholics disagree with church teachings same-sex marriage and contraception. It also found that White Catholics were more likely than not to believe abortion should be legal “in all or most cases.” It also found that 60 percent of Catholics feel the church places too much emphasis on sexual issues and should instead focus on issues pertaining to social justice. Furthermore, about 60 percent of Catholics also believe that the church should either “adjust traditional beliefs and practices in light of new circumstances or adopt modern beliefs and practices.”

However, anyone with a passing familiarity with survey research knows that there is a significant problem with this survey and others like it. Namely, it lumps all self- identified Catholics together. It does not draw distinctions between Catholics who attend Mass on a weekly basis and those who attend less often. Both scholars of public opinion and survey research professionals know that church attendance is far better predictor of opinions on issues — particularly social issues — than one’s faith tradition. Furthermore, there is a substantial body of research which finds that frequent Mass attendees are likely to agree with church teachings.

But doesn’t the church’s hierarchy also lump all these people together? Why would Mr. New expect pollsters or the press to be more disciplined in their evaluations than the church’s clergy?