… In the event, the final 2015 election campaign polls from nine polling companies resulted in three giving Labour leads, three offering a dead heat and three suggesting Conservative leads – two registering one-point leads and the other a lead of three points – far below the eventual seven-point gap. …
Within 24 hours of the election result, the British Polling Council launched an independent inquiry into the performance of the polls. Chaired by Prof Patrick Sturgis and assisted by colleagues such as Prof Jane Green, their conclusions will be made public in mid-January. …
But the impact of the 2015 polling experience has already been felt. CONT.
David Cowling, BBC