Scottish election: This is why Holyrood predictions can be wrong

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The National
Scottish election: This is why Holyrood predictions can be wrong

AS I sit down to attempt to forecast the outcome of the Holyrood election, I’m haunted by the knowledge that almost everyone who engaged in the same exercise just before the 2011 and 2016 elections got it wrong.

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The National
Scottish election: This is why Holyrood predictions can be wrong