Measurement of Interobserver Disagreement: Correction of Cohen’s Kappa for Negative Values

Table 2

Results from = 100 couples answering a multiple-choice question with three choice categories (fictitious data).

Wives	Husbands			Total
		0.04	0.35		0.21	0.60
	0.22	0.02	0.01	0.25
	0.08	0.01	0.06	0.15
Total	0.34	0.38	0.28	1.00