Pollsters’ moment of truth

The Washington Post reports:

It’s not just the election. Among pollsters, there’s fear that changing technology (mainly cellphones) and growing public unwillingness to do interviews are undermining telephone surveys — and that there’s no accurate replacement in sight. A recent study by the Pew Research Center reported its response rate at 9 percent, down from 36 percent in 1997. Put differently: in 1997, Pew made about three residential calls to get one response; now it makes 10.