More evidence cell phone users affect polls
The latest political polling numbers suggest that poll results sway in favor of one candidate or another depending on whether a pollster calls likely voters on cell phones, Nate Silver pointed out on FiveThirtyEight.com on Sunday.
Silver's analysis shows that out of 14 polling organizations, the five that call likely voters' cell phones (shown in gold in the accompanying chart) put Democrat Barack Obama ahead of Republican John McCain by an average of 9.4 points. By contrast, the eight pollsters that do not call cell phones have Obama ahead by 5.1 points.
The data mirrors studies … Read more