Constituency voting intention, with changes from last month, are CON 20 % (+1), LAB 40 % -LRB--2), LDEM 13 % (+1), Plaid 22 % (+2).
Following the TNS poll earlier this week that showed the SNP catching Labour in Holyrood voting intentions, there is a new YouGov poll for the Scotsman that shows them ahead in
constituency voting intention.
In most seats this is only a marginal difference — in Lib Dem held seats it can be substantial, as repeatedly shown in polls of Lib Dem marginal seats using a two - stage national - then -
constituency voting intention questions (see here by Lord Ashcroft, and here by YouGov).
Not exact matches
One of the major talking points has been Lord Ashcroft's recent polls of 16 Scottish
constituencies, which attracted special attention because unlike the other polling companies it drilled down to
constituencies rather than just
voting intentions as a whole.
These polls typically do not show much sign of switching between general and
constituency specific
vote intention, except in Liberal Democrat seats where it is unclear whether the switching is tactical or due to the personal popularity of the sitting MP.
However, I'm always slightly wary of
constituency polls in Liberal Democrat held seats — the effect of incumbency and tactical
voting is far higher for Lib Dem MPs, and when you ask a generic
voting intention I think many people give their national preference, rather than how they would actually
vote in their own
constituency.
In the
constituencies surveyed, Labour lead the
voting intention poll, at 38 %, three point ahead of the Tories at 35 % with the Lib Dems in third at 21 %.
The idea behind MRP is that we use the poll data from the preceding seven days to estimate a model relating interview date,
constituency, voter demographics, past
voting behaviour, and other respondent profile variables to their current
voting intentions.
Lord Ashcroft used the two stage
voting intention question for the
constituency poll, first asking people a generic
voting intention question and then asking people to consider their own
constituency and the candidates likely to stand there in an attempt to squeeze out tactical or incumbency effects.
Assembly
voting intentions are CON 23 %, LAB 39 %, LDEM 6 %, Plaid 18 %, UKIP 13 % for the
constituencies, CON 24 %, LAB 34 %, LDEM 5 %, Plaid 18 %, UKIP 14 % for the regional
vote.
This is not necessarily a bad thing — certainly I have grave doubts about polls done in Lib Dem
constituencies that just ask a standard
voting intention question.
Holyrood
constituency figures are CON 16 %, LAB 33 %, LDEM 16 %, SNP 28 % — the article doesn't refer to any Holyrood regional
voting intentions.
Interestingly comparing the standard
voting intention question and the
constituency question a quarter of Conservative voters say they will actually
vote Lib Dem in Hallam, suggesting significant Tory tactical
voting propping up Nick Clegg.
Both Ashcroft and ComRes asked a
voting intention question that prompted people to think about their own
constituency, candidates and MP to try and get at the personal and tactical
voting that Lib Dem MPs are so reliant upon.
First it asked people their
voting intention using the standard question, THEN it asked them their
voting intention again saying «thinking about your own
constituency and the parties and the candidates who are likely to stand there, which party's candidate do you think you will
vote for in your own
constituency at the next general election?»
In a normal
voting intention question in Con - v - LD seats the Lib Dems are in third place on 18 %, asked using the
constituency specific wording they are on 31 %.
Voting
intention figures put Labour at 40 per cent on the Holyrood
constituency vote and 36 per cent on the regional list.
Oakeshott said a further poll on
voting intentions in Inverness, Nairn, Badenoch and Strathspey, the Scottish
constituency of Danny Alexander, the senior Lib Dem Treasury minister, would be on the ICM website later on Wednesday.
However a lot has been made of the fact that while both polls had an effort to take account of people's personal and tactical
voting behaviour in their own
constituency, they did so in different ways — Ashcroft asks a two stage question, asking people their national preference and then how they will
vote thinking about the candidates and parties in their own
constituency; ICM asked people the
voting intention question including the names of the candidates standing in Sheffield Hallam.