Xtmixed Stata Icc. When I was running the xtreg and xtmixed in Stata 131 the two tests show different coefficient. See XT xtmixed postestimation.
Intraclass correlations are available for random-intercept models or for random-coefficient models conditional on random-effects covariates being equal to zero. Statas xtmixed command requires the dependent variable followed by which specifies the separation between the fixed and random variables. Nov 11 2014 I was trying to calculate the ICC to see whether it is needed for a multilevel analysis for my data.
----- begin code ----- clear webuse nlswork xtmixed ln_w grade age cagecage ttl_exp tenure ctenurectenure id.
Linear unbiased predictions BLUPs of them and standard errors by using predictafter xtmixed. See XT xtmixed postestimation. From the help file for xtmixed. In addition to calculating the ICC this program also calculates the standard error of the maximum likelihood large sample ICC.
