Real or not real, the only way to keep Obama out of the White House is for every conservative to get out and vote. The Bradley Effect could easily be analyzed by looking at Hillary’s primary races against Obama and seeing if her vote numbers outdid the polls by a significant margin. I haven’t noticed anyone doing that.
RCP Polls:
NH Democrat Primary Final Poll Avg.: Obama: +8.3%
NH Democrat Primary Results: Clinton: +2.6%
OH Democrat Primary Final Poll Avg.: Clinton: +7.1%
OH Democrat Primary Results: Clinton: +10.1%
PA Democrat Primary Final Poll Avg.: Clinton: +6.1%
PA Democrat Primary Results: Clinton: +9.2%