Hello

I’m trying to run a multilevel linear model using brms package, especially when including predictors in the fixed part and only one predictor in level 2.

R takes a long time to run the conditional model and mostly not responding

May you please help me how can I get faster simulation using this package

Moreover, I have another question regarding the interpretation of the results

for icc () function

I see the between-group variance and within group variance and after calculating the ICC manually it differs from R output

ICC: 0.25 HDI 89%: [0.06 0.42]

Between-group: 0.18 HDI 89%: [0.03 0.33]

## Residuals

Within-group: 0.47 HDI 89%: [0.46 0.48]

I have calculated ICC as 0.18/(0.18+0.47)= 0.277, which differs from 0.25, I’m I calculated correctly

Thank you