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Aug 25, 2020 at 18:48 history edited Robert Long CC BY-SA 4.0
deleted 18 characters in body
Aug 25, 2020 at 18:43 comment added Robert Long @SeydouGORO I have added a simulation to demonstrate that it doesn't matter what level a variable varies at.
Aug 25, 2020 at 18:42 history edited Robert Long CC BY-SA 4.0
Added simulation for fixed effects levels
Aug 25, 2020 at 18:14 vote accept Seydou GORO
Aug 25, 2020 at 17:49 comment added Robert Long @SeydouGORO Perhaps it would be better to say that it does not need to know, because it has no impact on the estimation procedure. There is no way for you to tell the software at what level it varies anyway!
Aug 25, 2020 at 16:51 comment added Seydou GORO Thank you for all your clarifications, which help me a lot. But how can the software know, for example, that the variables HHI and hospital status are level 2 variables and that they are relative to the hospital. Also, that the deprivation index variable is related to the city and that they are not related to the patients, to avoid some bias.
Aug 25, 2020 at 15:52 history answered Robert Long CC BY-SA 4.0