David Winsemius wrote:
>
> That is different than my understanding of AIC. I thought that the AIC
> and BIC both took as input the difference in -2LL and then adjusted
> those differences for the differences in number of degrees of freedom.
>
>
David! Your words make sense to me now. Sor
My suggestion for Teresa:
If compare model 1 and model 2 with model 0 respectively, the (penalized)
likelihood ratio test is valid.
IF you compare model 2 with model 3, the (penalized) likelihood ratio test
is invalid. You may want to use AIC/SBC to make a subjective decision.
--
View this
My suggestion:
If compare model 1 and model 2 with model 0 respectively, the (penalized)
likelihood ratio test is valid.
IF you compare model 2 with model 3, the (penalized) likelihood ratio test
is invalid. You may want to use AIC/SBC to make a subjective decision.
--
View this message in con
The likelihood ratio test is more reliable when one model is nested in the
other. This true for your case.
AIC/SBC are usually used when two models are in a hiearchical structure.
Please also note that any decision made
made based on AIC/SBC scores are very subjective since no sampling
distributio
The likelihood ratio test is more reliable when one model is nested in the
other. This true for your case.
AIC/SBC are usually used when two models are in a hiearchical structure.
Please also note that any decision made made based on AIC/SBC scores are
very subjective since no sampling distributi
On Sat, Aug 28, 2010 at 8:38 PM, David Winsemius wrote:
>
> On Aug 27, 2010, at 4:32 PM, Teresa Iglesias wrote:
>
> Christopher David Desjardins umn.edu> writes:
>>
>>
>>> Hi,
>>> I am running a Cox Mixed Effects Hazard model using the library coxme. I
>>> am trying to model time to onset (age_s
On Aug 27, 2010, at 4:32 PM, Teresa Iglesias wrote:
Christopher David Desjardins umn.edu> writes:
Hi,
I am running a Cox Mixed Effects Hazard model using the library
coxme. I
am trying to model time to onset (age_sym1) of thought problems (e.g.
hearing voices) (sym1). As I have siblings
Christopher David Desjardins umn.edu> writes:
>
> Hi,
> I am running a Cox Mixed Effects Hazard model using the library coxme. I
> am trying to model time to onset (age_sym1) of thought problems (e.g.
> hearing voices) (sym1). As I have siblings in my dataset, I have
> decided to account fo
Hi,
I am running a Cox Mixed Effects Hazard model using the library coxme. I
am trying to model time to onset (age_sym1) of thought problems (e.g.
hearing voices) (sym1). As I have siblings in my dataset, I have
decided to account for this by including a random effect for family
(famid). My
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