ComRes/Sunday Indy - CON 30, LAB 34, LD 8, UKIP 19, GRN 3
ComRes's monthly online poll for the Indy on Sunday and Sunday Mirror is out tonight and has topline figures of CON 30%, LAB 34%, LDEM 8%, UKIP 19%, GRN 3%. Tabs are here.
On the face of it there is very little change from a month ago, the Conservatives are down one, Lib Dems up one. However, there is actually an important methodological change. As regular readers will remember, last month ComRes did a split sample experiment in their online poll, with half the sample being asked voting intention with UKIP in the main prompt, half not. This apparently made 5 points difference to UKIP, with the prompted half of the sample showing UKIP up on 24%. ComRes have now switched over to prompting for UKIP all the time in their online and telephone polls, but it obviously didn't have the same dramatic effect in this month's poll. I suppose comparing prompted-poll to prompted-poll UKIP are down 5 points since last month, but perhaps last month's was an anomoly and the impact of prompting is just less than the split-sample experiment suggested.
ComRes's press release suggests they have also tweaked their weightings this month. I'll update with details once they are confirmed, but looking through the tables nothing jumps out at me so it is probably relatively minor.
