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Thanks for your reply. Here is the example: For the null model, the random part shows that σu0^2=0.076; σe0^2=0.248 when I added several independent variables into the null model and keeps the coefficients fixed (NOT randomly varies cross schools), the random part shows that σu0^2=0.075; σe0^2=0.228...

Dear everyone: I have a question on the drop of variance at the higher level. I am modeling 2 two-level random slope model. I found that when I just added some independent variables into the null model, and all slopes are fixed, but the variance at level-2 (school) still drops. I was a lit bit confu...

Hi everyone, I have questions on 2-level multi-model with small number level-2 unit. I am trying to study educational issue in two different areas A and B. In area A, I collected data from 20 schools with 229 individuals, and in area B, there is only data from 17 schools with 119 invididuals. I am ...

Hi everyone, I have a problem in running MLwiN for analysing a 2-level modelling. I have data of 229 individual nested in 20 groups, and am going to estabilsh a multilevel modelling using MCMC bayesian estimation. When I run the program, it always comes to a error message of either 'SSP matrix for r...