Weighted Kappas for 3×3 Tables

Table 2

Four examples of 3×3 agreement tables from the literature with corresponding values of weighted kappas.

Category labels	3×3 table				Kappas
					Estimates	95% CI
Psychotic	106	10	4	120	𝜅=.429	(.323--.534)
Neurotic	22	28	10	60	𝜅ℓ=.492	(.393--.592)
Personality disorder	2	12	6	20	𝜅𝑞=.567	(.458--.676)
	130	50	20	200	𝜅𝑐=.536	(.434--.637)
Spitzer et al. [26]					𝜅1=.596	(.481--.710)
Personality types					𝜅2=.325	(.182--.468)
					𝜅3=.222	(.024--.420)
No atopy	136	12	1	149	𝜅=.730	(.645--.815)
Atopy, no neurodermatitis	8	59	4	71	𝜅ℓ=.737	(.652--.822)
Neurodermatitis	2	4	6	12	𝜅𝑞=.748	(.651--.845)
	146	75	11	232	𝜅𝑐=.759	(.678--.840)
Simonoff [27]					𝜅1=.786	(.703--.869)
Stability of atopic disease					𝜅2=.720	(.624--.817)
					𝜅3=.497	(.240--.754)
Negative	1360	63	8	1431	𝜅=.675	(.632--.719)
Low positive	61	66	13	140	𝜅ℓ=.761	(.725--.798)
High positive	10	16	137	163	𝜅𝑞=.830	(.798--.862)
	1431	145	158	1734	𝜅𝑐=.744	(.705--.782)
Castle et al. [28]					𝜅1=.716	(.672--.760)
Results of hybrid capture testing					𝜅2=.415	(.339--.491)
					𝜅3=.839	(.794--.884)
Good recovery	36	4	1	41	𝜅=.689	(.549--.828)
Moderate disability	5	20	4	29	𝜅ℓ=.735	(.610--.861)
Severe disability	0	1	9	10	𝜅𝑞=.788	(.667--.910)
	41	25	14	80	𝜅𝑐=.741	(.614--.868)
Anderson et al. [24]					𝜅1=.750	(.605--.895)
Glasgow outcome scale scores					𝜅2=.610	(.427--.793)
					𝜅3=.707	(.489--.925)