Polling merry-go-round

February’s Roy Morgan had the Nats up and Labour down, prompting Zetetic’s post “Latest Roy Morgan… a bit shit“. The Roy Morgan out yesterday had National down 4 to 43.5, Labour up 2 to 32.5, Greens up 1 to 13.5, and overall a projected win for the left.

So that’s a bad Roy Morgan followed by a good one. We’ve been here before, exactly the same pattern in the two before these, a bad one (with a Zet post) followed by a good one (and my post focusing on the long term trend).

From which I guess we can conclude that (1) our mate Zet is a pessimist, while (2) I’m a foolish optimist, and (3) the margin of error makes individual polls a mad merry-go-round that we shouldn’t get too excited about. Here’s another analysis of the trend in Roy Morgan polls…

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