Populus have released new polling figures on the Alternative Vote. As in February they used a split sample, asking half the respondents how they would vote using the bare referendum question, but prompting the other half with explanations of the two systems. In February Populus found a 12 point lead for YES in the unprompted question, but a 14 point lead for NO when people were given an explanation of the two systems.
This month they have repeated the exercise and found significant convergence between the two questions. Now on the bare referendum question Populus found YES on 33% (down 8 ) and NO on 37% (up 8). On the prompted question there is much less movement – YES is unchanged on 29%, NO is up three on 46%. No still have a much bigger lead when the systems are explained, but the difference is considerably smaller.