Students are nested in schools, individuals are nested in populations.
Students are not nested within tests and individuals are not nested within
types. With the schools data both types of tests would have to be
administered in each school, or at least in some schools to test for a
test:school interaction. Here, there's only 1 type of plant per population,
so there's no way to test a type:population interaction.




andydolman@gmail.com


On 6 April 2010 23:36, Daniel Ezra Johnson <danielezrajohnson@gmail.com>wrote:

> Take the classic example of students nested within schools. And the fixed
> effect of interest might be two different versions of a test.
>
> Are people saying that if the effect of interest was instead school, and
> school was made a fixed effect, that you would stop saying students are
> "nested" within school?
>
> To me it's a valuable term. A random effect can nest in, or be crossed
> with, a fixed effect.
>
> Dan
>
>
>

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