= Benchmarks for kappa (Landis & Koch, 1977) =

|||| Kappa || Strength of Association ||
|||| 0.00 || Poor ||
|||| 0.01-0.20 || Slight ||
|||| 0.21-0.40 || Fair ||
|||| 0.41-0.60 || Moderate ||
|||| 0.61-0.80 || Substantial ||
|||| 0.81-1.00 || Almost Perfect ||

__References__

Everitt, BS and Hay, DF (1992) Talking about statistics: a psychologist's guide to deisgn and analysis. Edward Arnold:London. Details concerning use and computation of kappa and mention of the above benchmarks.

Landis, JR and Koch, GC (1977) The measurement of observer agreement for categorical data. ''Biometrics'', '''33''', 159-174.