Exit polls DO include early voting

[geek tragedy]

http://www.washingtonpost.com/blogs/the-fix/wp/2012/11/06/everything-you-need-to-know-about-exit-polls/

* The early voter telephone poll: From last Monday to Sunday, the exit polling firm Edison Media Research has been conducting the exit poll questionnaire over the phone — including cellphones in some states — with voters who cast early or absentee ballots.
The national exit poll contains such an early voting component, as do about half of state exit polls. The phone surveys are carried out by dialing randomly generated landline and (in many states) cell phone numbers – similar to other national polls – and asking whether respondents have already cast ballots. The results from these surveys are combined with responses to paper-and-pencil questionnaires collected on Election Day, and then adjusted to reflect the correct proportion of early voters. 

[MjolnirTime]

1. only half. don't over-generalize.