We have often moaned about opinion polls and their limited value on this blog. You know, those things where people get asked about their favorite toothpaste and that gets sold as public opinion? The question, of course, is how to do it better. Public opinion is an intricate phenomenon. We don't really know how to define the public to begin with, let alone how to figure out their opinion.
There's been a great model around since the mid 90s: Deliberative Polling. Introduced by James Fishkin, Deliberative Polls are designed to "show what the public would think about the issues, if it thought more earnestly and had more information about them,” to provide a “glimpse of the hypothetical public” (Luskin, Fishkin, and Jowell, 2002). It works like this: