But of the 500 voters surveyed, only 20 percent said the Kennedy family nod made them more likely to vote for Coakley, and 27 percent said the endorsement made them less likely to support her.

More than half of voters – 52 percent – said the endorsements had no effect, and 2 percent were undecided or refused to answer.

“For independents, it doesn’t appear to have a positive effect. In fact, it may have had a negative effect,” said David Paleologis, director of the Suffolk University Political Research Center.