, Volume 65, Issue 1, pp 23-35
Date: 18 Aug 2010

AIC model selection and multimodel inference in behavioral ecology: some background, observations, and comparisons

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Abstract

We briefly outline the information-theoretic (I-T) approaches to valid inference including a review of some simple methods for making formal inference from all the hypotheses in the model set (multimodel inference). The I-T approaches can replace the usual t tests and ANOVA tables that are so inferentially limited, but still commonly used. The I-T methods are easy to compute and understand and provide formal measures of the strength of evidence for both the null and alternative hypotheses, given the data. We give an example to highlight the importance of deriving alternative hypotheses and representing these as probability models. Fifteen technical issues are addressed to clarify various points that have appeared incorrectly in the recent literature. We offer several remarks regarding the future of empirical science and data analysis under an I-T framework.

Communicated by L. Garamszegi
This contribution is part of the Special Issue “Model selection, multimodel inference and information-theoretic approaches in behavioral ecology” (see Garamszegi 2010).
An erratum to this article can be found at http://dx.doi.org/10.1007/s00265-010-1084-z