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

  • Burnham K
  • Anderson D
  • Huyvaert K
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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.

Author-supplied keywords

  • AIC
  • Evidence
  • Kullback-Leibler information
  • Model averaging
  • Model likelihoods
  • Model probabilities
  • Model selection
  • Multimodel inference

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  • Kenneth Burnham

  • David Anderson

  • Kathryn Huyvaert

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