Calculating the Intraclass Correlation Coefficient (ICC) in SAS

https://www.sas.com/content/dam/SAS/en_ca/User%20Group%20Presentations/Health-User-Groups/Maki-InterraterReliability-Apr2014.pdf

PDF page.11

ods output CovParms = cov1 ;
proc mixed data=dental method=ml;
class patient ;

model score = ;

random patient ;

run ;