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After a very late night following the UK general election results, it’s clear that YouGov’s final projection of our MRP model properly told the story of the 2024 election. We called 92% of the seats correctly, and our model correctly projected: -  Labour’s landslide victory -  The extent of the Conservative vote collapse -  The nearly perfect projection of Liberal Democrat seats -  The Green party and Reform UK as growing electoral forces This was not a straightforward election. The electorate has shifted significantly over the last decade in a number of ways and various voter groups that were previously closely aligned to particular parties have become unmoored. A related point is that the 2019 Tory election-winning coalition – a unique blend of north and south cultural and economic conservatives and liberals – has fragmented beyond recognition in the past five years, with each of Labour, Reform UK, the Liberal Democrats, and the Greens benefiting. All of this made political modelling for the 2024 election especially difficult. However, a number of factors helped us. One of the most significant was a market-leading and completely new innovation; our “unwinding” algorithm which helped us deal with the unique, high-change situation which the data was pointing toward and for which we had no precedent or prior data to help guide us. Another was the quality of our data. Machine learning models such as MRP work best when high quality data is fed into the model. Because YouGov owns our own panel, we have a unique relationship with the people taking our surveys and have a deep understanding of who our panellists are. This helps us build and execute market-leading models at scale which can also be used for our clients to answer their own business challenges. There are things in the results that we will need to build into our future work. As a data and analytics business, we constantly look for ways to improve our methods and we will be doing a thorough review of any areas where we can take learnings from for next time to make our MRP even more accurate and how we can apply our success into other areas of YouGov’s work. Read more about YouGov’s projections compared to the election results and learn more about what made our MRP model work so well: https://lnkd.in/eDrgK5tv

How YouGov's seat and vote projections fared at the 2024 UK general election | YouGov

How YouGov's seat and vote projections fared at the 2024 UK general election | YouGov

yougov.co.uk

Alan Petz

Legal Counsel | Digital Law Professor @UANL | Legal Ops | Legal Tech | Legal Project Management | Pro Bono

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