What should be the default assumption?
Final Polls 1987/92/97/01/05: Polls overstating Labour: 29 Polls getting it right: 1 Polls understating Labour: 1 Have we still got to factor in Labour over-statement? There was a constant reminder from many of the speakers at this week’s conference on general election polling that in only one of the 31 final polls in the five general elections since 1987 has Labour been understated. The exception was ICM in 1997 when even with this it still ended up as top pollster….