Message-ID: <a46630750906110549o3bdd6ebftfbe89d287d4b0da4@mail.gmail.com>
Date: 2009-06-11T12:49:53Z
From: Daniel Ezra Johnson
Subject: Binary data - zero random effects or not depending on a small change in the level 2 groups
In-Reply-To: <6EA5ACC8-026F-4F73-9421-68BDBC8B6E89@imperial.ac.uk>
I would say that you have roughly zero variance in both cases.
On Thu, Jun 11, 2009 at 8:21 AM, Federico
Calboli<f.calboli at imperial.ac.uk> wrote:
> On 11 Jun 2009, at 13:14, Fiona Mary Underwood wrote:
>
>> <snip>
>>
>>
>> I get very different results for my random effects depending on whether
>> I use season or year.
>
>
> Unfortunately I cannot help much, but, does the result change if year is
> coded as factor or as a continuous variable? what about season?
>
> Best,
>
> Federico
>
> --
> Federico C. F. Calboli
> Department of Epidemiology and Public Health
> Imperial College, St. Mary's Campus
> Norfolk Place, London W2 1PG
>
> Tel +44 (0)20 75941602 Fax +44 (0)20 75943193
>
> f.calboli [.a.t] imperial.ac.uk
> f.calboli [.a.t] gmail.com
>
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