Intraclass correlation coefficient PROC GLIMMIX with three levels

[triscuit]

Hi, 

I am calculating the ICC in a three level model.  I'm using PROC GLIMMIX.  My covariance parameter estimates are below. I'm just wondering if anyone can help with what the estimate for RWRK_ID means?  I'm not sure what the E-6 signifies. Any help would be appreciated. Thanks!

Covariance Parameter Estimates

Cov Parm      Subject                            Estimate           Standard Error

CHOL(1,1)      RWRK_ID                         1.054E-6           0.1094

CHOL(1,1)      WRK_ID(RWRK_ID)          1.3724              0.06645

[sld · Accepted solution]

1.054E-6 equals 1.054 * 10^(-6) = 0.000001054

[triscuit]

Thank you so much for your help.