Table II.

Altman’s (1999) levels of agreement and symbolic codes.

Cohen’s Kappa	Level of agreement	Symbol
< 0	Absent	x
0.00-0.2	Poor	#
0.21-0.4	Sufficient	*
0.41-0.6	Moderate	†
0.61-0.8	Good	¥
0.81-1	Very good	§