Simon, could you clarify this paragraph. We are submitting to a
psychology journal and I am certain they will be asking us about why it
is still ok to use AIC for non-nested models. Thanks. Will Shadish
On 8/2/2012 9:49 AM, Simon Wood wrote:
For AIC model comparison, the usual advice applies that although the
comparisons are a bit more reliable for nested models (since then some
of the AIC approximations errors are the same in both cases, and
cancel in the comparison), it is still ok to use AIC for non-nested
models (i.e. it is *not* like most hypothesis testing where everything
falls apart if you don't have nesting).
best,
Simon
--
William R. Shadish
Distinguished Professor
Founding Faculty
Chair, Psychological Sciences
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William R. Shadish
University of California
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ATTN: William Shadish
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