My first thought was, "Well, I got tired of being the spiritual leader in the home, so it stands to reason that most of the Christian women in America got tired, too."
Then I went to the actual survey results page on Barna: http://www.barna.org/faith-spirituality/508-20-years-of-surveys-show-key-differences-in-the-faith-of-americas-men-and-women
and I was surprised to note that this was just a "new analysis of
surveys done by Barna. I would really like to see the methodology and
the original surveys that were newly analyzed.
Yes, church attendance is down.
Yes, there are fewer baptisms.
Most likely there are fewer parents attending with children. This would
definitely impact the thought processes of children twenty years later
in today's society.
I'm going to do some more research on this because I feel it is a survey
that needs more study before concluding there are fewer women believers
today than twenty years ago, except for those women who have gone on to
be with Jesus. That would mean the belief factor would be stagnant
which isn't true at all.