Survey Practice reports on the higher costs of cell phone interviewing.
Phil Trounstine considers the value of opinions based on little knowledge.
Sean Trende assesses Obama's 2012 chances.
Joshua Green explains why Donald Trump may be hurting his TV ratings.
Politifact says Donald Trump lied about the CNN poll.
Tom Jensen finds Trump unpopular in swing states.
Mark Mellman discusses how appointees to the Senate have fared in their next election.
ResearchRants has fun with crosstabs using PPP's Mississippi poll on interracial marriage.
Chris Mulligan takes apart a flawed chart.
Robert Groves discusses transparency and the credibility of government statistics.
D'Vera Cohn assesses the 2010 Census count.
Carl Bialik finds no support for a widely cited stat on women as controllers of household spending.
Stephanie Clifford explains why women need to spend so much time trying on clothing.