July 16, 2015 — Another new faulty poll, this one from Suffolk University, again posts businessman Donald Trump to a slight lead over the rest of the Republican presidential field. But, like many other surveys that seem to attract sizable media attention, their primary results are not methodologically sound.
The latest Suffolk effort, conducted over the July 9-12 period, interviewed 1,000 adults, again not all registered voters, and produced a Republican primary sample of only 349 respondents. This might be a reasonable sample size for a congressional district, or even a small state like New Hampshire, but certainly not the whole nation.
And, based upon this unreliable data, Suffolk and the media are projecting Trump with what they allude to be a significant lead over Jeb Bush, Gov. Scott Walker, and the other 16 tested GOP candidates.
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