What are MRP polls and can they forecast vote-casting outcomes properly?

.THERE IS bit doubt concerning the most likely victor of Britain’s overall political election on July 4th: along with a lead of twenty percentage factors in national viewpoint polls, the Labour Event is very likely to gain. But there is actually uncertainty regarding the size of Work’s majority in Britain’s 650-seat Home of Commons. Some polling companies have actually published seat forecasts utilizing an unique procedure called multi-level regression as well as post-stratification (MRP).

What are actually these surveys– and exactly how accurate are they?