I'm not sure if they coined the term or not, but WSJ's Best of the Web daily email (if you aren't subscribed to this I highly recommend it...it is in my Top 5 must reads) discusses what they call the Roe Effect. In a nutshell, it means that being liberals believe in abortion more than conservatives do, they are more likely to have one.
Then that would mean less babies in liberal households and more babies in conservative households over time. Then being parents pass on their values to their kids, in time conservative values would once again overtake liberal ideas.
Is this poll possible proof of the Roe Effect taking place showing a turning of the tide on public opinion on abortion?