How ICM and YouGov compare
What to do when you’re struck by just how different two pieces of data are? Why, draw a graph of course. Hence this, triggered by the very differing picture of Liberal Democrat fortunes told by the latest YouGov and ICM polls:
![](https://www.markpack.org.uk/files/2011/08/ICM-vs-YouGov-1024x597.png)
Liberal Democrat ratings in all the published YouGov and ICM polls since the 2010 general election, dated by first day of their fieldwork
Brilliant chart from @markpack on ICM vs YouGov http://t.co/R3POLGB