Well, geez! Without trying to upstage SImon, why not google it yourself?! http://en.wikipedia.org/wiki/Akaike_information_criterion
(seemed pretty clear to me...) -- Bert On Thu, Aug 2, 2012 at 9:54 AM, Will Shadish <wshad...@ucmerced.edu> wrote: > 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 > > Mailing Address: > William R. Shadish > University of California > School of Social Sciences, Humanities and Arts > 5200 North Lake Rd > Merced CA 95343 > > Physical/Delivery Address: > University of California Merced > ATTN: William Shadish > School of Social Sciences, Humanities and Arts > Facilities Services Building A > 5200 North Lake Rd. > Merced, CA 95343 > > 209-228-4372 voice > 209-228-4390 fax > wshad...@ucmerced.edu > http://faculty.ucmerced.edu/wshadish/index.htm > http://psychology.ucmerced.edu > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
