Model selection for ecologists: the worldviews of AIC and BIC

Ecologists frequently ask questions that are best addressed with a model comparison approach. Under this system, the merit of several models is considered without necessarily requiring that (1) models are nested, (2) one of the models is true, and (3) only current data be used. This is in marked con...

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Vydáno v:Ecology (Durham) Ročník 95; číslo 3; s. 631 - 636
Hlavní autoři: Aho, Ken, Derryberry, DeWayne, Peterson, Teri
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States Ecological Society of America 01.03.2014
Témata:
Data Interpretation, Statistical
Ecological modeling
Ecological selection
Ecosystem models
FORUM—P values and model selection
Mathematical models
Modeling
Models, Statistical
Null hypothesis
P values
Parametric models
Predictive modeling
Research Design
Sample size
ISSN:0012-9658, 1939-9170
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Shrnutí:Ecologists frequently ask questions that are best addressed with a model comparison approach. Under this system, the merit of several models is considered without necessarily requiring that (1) models are nested, (2) one of the models is true, and (3) only current data be used. This is in marked contrast to the pragmatic blend of Neyman-Pearson and Fisherian significance testing conventionally emphasized in biometric texts (Christensen 2005), in which (1) just two hypotheses are under consideration, representing a pairwise comparison of models, (2) one of the models, H sub(0), is assumed to be true, and (3) a single data set is used to quantify evidence concerning H sub(0).
Bibliografie:Corresponding Editor: A. M. Ellison. For reprints of this Forum, see footnote 1, p. 609.
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ISSN:0012-9658
1939-9170
DOI:10.1890/13-1452.1