How the AP-GfK poll was conducted Associated Press Copyright 2012 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 10:25 a.m., Sunday, October 28, 2012 Digits in the phone numbers dialed were generated randomly to reach households with unlisted and listed landline and cellphone numbers. [...] the weighting took into account patterns of phone use — landline only, cell only and both types — by region.