MRP and the Remain United Preamble

Multi-level regression and post-stratification (MRP) is a statistical technique used to project national polling data onto electoral districts, such as constituencies or regions. This is important for understanding elections where the geography of the nationwide vote is crucial, such as states in the US (for their electoral college), or constituencies in the House of Commons.

Remain United commissioned an MRP projection, using internet panel polling data from ComRes, for European Parliament voting intention. ComRes interviewed 4,060 GB adults between 1st and 7th May