COMMENT:

The disparity between the recent political polls released by local news organisations has again raised questions about the accuracy of such surveys and whether we should pay any attention to them at all.

These questions are particularly pointed in the aftermath of the Colombian referendum, Brexit, the Trump victory and the recent Australian election – all notable examples of pollsters getting their predictions wrong.

Colleen Ryan, the head of strategy at Kiwi research firm TRA, says the problem with polling comes down to human behaviour and how we like to present ourselves to others.

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