Report by main psephologist suggests 2015 pollsters did not reach right people and so could not predict Tory majorityA recent report traces the roots of the pollsters’ failure to predict the Conservative majority in last year’s election to their lack of adequate contact with Tory supporters. Earlier speculation about what went inaccurate has focused on poorly designed questionnaires,a late swing to the Conservatives, a failure of “sluggish Labour” supporters to turn out, and reticence on the part of “shy Tories” to reveal their leanings.
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Source: theguardian.com