Exercise: observer agreement about 6eye colour, answer 6

Question

What weights for agreement would correspond to these disagreement weights?

Suggested answer

These would be the corresponding weights for agreement, with exact agreement given weight 1:

agree

	black	brown	blue	grey	hazel	green	other
black	1	0.5	0	0	0	0	0
brown	0.5	1	0	0	0.5	0	0
blue	0	0	1	0.5	0	0	0
grey	0	0	0.5	1	0	0.5	0
hazel	0	0.5	2	0	1	0.5	0
green	0	0	2	0.5	0.5	1	0
other	0	0	2	0	0	0	1

We got these as follows. The maximum disagreement weight is 2. We subtracted the weights from 2. We then divided by 2, to give us the agreement weights.

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