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. 2015 Mar 25;75(6):979–1001. doi: 10.1177/0013164415574086

Table A.1.

Seven Test Formulas for Assessing Agreement From a Judgment Matrix.

Name and formula Null hypothesis Reference
k-to-z tests
zκ1=κ/var1(κ) H 0: κ = 0 Cohen (1960)
zκ2=κ/var2(κ) H 0: κ = 0 Fleiss et al. (1969)
Sum-of-z tests
zΣ1=Nk(k·r1) H0:i=1koi,i=N/k von Eye et al. (2006) a
zΣ2=izi,ik H0:i=1koi,i=iei,i This article
Tests on the structure of the judgment matrix
χ2=i=1kj=1kzi,j2 H0:oi,j=oi,*·o*,j/N Pearson (1932)
QA=i=1k(zi,i+)2+i=1kj=1,jik(zi,j)2i=1k(zi,i)2+i=1kj=1,jik(zi,j+)2 H0:QA=1 This article
PA=QA1+QA H0:PA=1/2 This article

Note. k is the number of categories and N is the number of observations classified.

a

This test, based on the indifference principle, is not included in the simulations reported.