How changing poll methodology is adding to Gord’s problems
Was “public sector weighting” behind MORI’s Tory 52%? One of the biggest polling changes that we’ve seen in years was introduced by Ipsos-MORI in the summer following a review after the London Mayoral elections. For in trying to work out why its surveys seemed to be over-stating Labour the firm discovered that people working in the public sector were being over-sampled. So a new calculation has been created and this has been one of the reasons why the firm is…