What are MRP polls and also can they predict political election results efficiently?

.THERE IS ACTUALLY minimal hesitation concerning the very likely winner of Britain’s basic vote-casting on July fourth: with a top of 20 amount factors in nationwide opinion surveys, the Labour Event is remarkably probably to succeed. But there is uncertainty regarding the dimension of Work’s bulk in Britain’s 650-seat Home of Commons. Some ballot agencies have published seat prophecies using a novel technique called multi-level regression and post-stratification (MRP).

What are these surveys– and how correct are they?