Roy Morgan has published a poll encompassing its face-to-face surveys from the past two weekends, hence not accounting for reaction to Labor’s formation of a minority government. It shows Labor opening a 54.5-45.5 lead on two-party preferred, compared with 52.5-47.5 in the last published poll of this kind conducted on the weekend before the election. On the primary vote, Labor is up half a point to 40.5 per cent, the Coalition down 3.5 per cent to 39.5 per cent and the Greens up 1.5 per cent to 15 per cent. The poll has a sample of 1632 and a margin of error of 2.5 per cent beyond that, the recent election result provides yet more evidence that Morgan’s face-to-face polling has a substantial house bias to Labor.
UPDATE: Further from Gary Morgan:
Analysis of ‘past vote’ — how respondents claimed they voted at the recent Federal election shows, ALP (42.5%, 4.5% higher than actual ALP vote recorded at the 2010 Federal election) cf. L-NP (39%, 4.5% lower than the L-NP vote recorded at the 2010 Federal election). “The difference between the reported ‘past vote’ and the actual election result can be due to either — a Labor biased sample, or by an unwillingness of the part of respondents to admit to voting L-NP. This latter problem has been noted in previous polls over many years. Regardless of the reason for the difference, if the Morgan Poll is weighted correctly for ‘past vote,’ the estimate would be 50:50, exactly the same as the special SMS Morgan Poll conducted on Wednesday/Thursday this week.”