16 Jul, 14 | by Bob Phillips
After a short pause while brain cells were diverted elsewhere, we’re returning with the critically acclaimed (well, slightly positively tweeted) StatsMiniBlog series.
(As an aside – do let me know via comments, Facebook or Twitter if there’s an issue you’d like to see covered)
Kappa (κ) is a measure of agreement, usually between two observers of a dichotomous outcome although there are variants for multiple observers. It gives you a measure of what agreement you see that is ‘beyond chance’