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Article Dans Une Revue Psychological Methods Année : 2013

Hypothesis Testing on the Fractal Structure of Behavioral Sequences: The Bayesian Assessment of Scaling Methodology

Résumé

I introduce the Bayesian assessment of scaling (BAS), a simple but powerful Bayesian hypothesis contrast methodology that can be used to test hypotheses on the scaling regime exhibited by a sequence of behavioral data. Rather than comparing parametric models, as typically done in previous approaches, the BAS offers a direct, nonparametric way to test whether a time series exhibits fractal scaling. The BAS provides a simpler and faster test than do previous methods, and the code for making the required computations is provided. The method also enables testing of finely specified hypotheses on the scaling indices, something that was not possible with the previously available methods. I then present 4 simulation studies showing that the BAS methodology outperforms the other methods used in the psychological literature. I conclude with a discussion of methodological issues on fractal analyses in experimental psychology.

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Psychologie
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Dates et versions

hal-01439688 , version 1 (18-01-2017)

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Fermin Moscoso del Prado Martin. Hypothesis Testing on the Fractal Structure of Behavioral Sequences: The Bayesian Assessment of Scaling Methodology. Psychological Methods, 2013, 18 (4), pp.514-534. ⟨10.1037/a0025812⟩. ⟨hal-01439688⟩

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