https://communities.sas.com/t5/Statistical-Procedures/To-calculate-variance-partition-coefficient-VPC-in-three-level/m-p/729966#M35407 <P>Dear all,</P><P>&nbsp;</P><P>I used SAS proc glimmix procedure to build a three-level mixed model with a link=logit, and got the variance estimate of second (physician) and third (hospital) level. However, since the variance of level 1 can't be got directly, I tried the simulation method and latent variable (3.29) to calculate the&nbsp;variance partition coefficient (VPC) or intra-class correlation coefficient (ICC), but the results from two methods was quite different.</P><P>&nbsp;</P><P>Does anyone have such experience?&nbsp;&nbsp;</P> Tue, 30 Mar 2021 05:42:59 GMT zhdanw 2021-03-30T05:42:59Z https://communities.sas.com/t5/Statistical-Procedures/To-calculate-variance-partition-coefficient-VPC-in-three-level/m-p/729966#M35407 <P>Dear all,</P><P>&nbsp;</P><P>I used SAS proc glimmix procedure to build a three-level mixed model with a link=logit, and got the variance estimate of second (physician) and third (hospital) level. However, since the variance of level 1 can't be got directly, I tried the simulation method and latent variable (3.29) to calculate the&nbsp;variance partition coefficient (VPC) or intra-class correlation coefficient (ICC), but the results from two methods was quite different.</P><P>&nbsp;</P><P>Does anyone have such experience?&nbsp;&nbsp;</P> Tue, 30 Mar 2021 05:42:59 GMT https://communities.sas.com/t5/Statistical-Procedures/To-calculate-variance-partition-coefficient-VPC-in-three-level/m-p/729966#M35407 zhdanw 2021-03-30T05:42:59Z