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2016 ; 7
(ä): 409
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Bayesian Model Selection with Network Based Diffusion Analysis
#MMPMID27092089
Whalen A
; Hoppitt WJ
Front Psychol
2016[]; 7
(ä): 409
PMID27092089
show ga
A number of recent studies have used Network Based Diffusion Analysis (NBDA) to
detect the role of social transmission in the spread of a novel behavior through
a population. In this paper we present a unified framework for performing NBDA in
a Bayesian setting, and demonstrate how the Watanabe Akaike Information Criteria
(WAIC) can be used for model selection. We present a specific example of applying
this method to Time to Acquisition Diffusion Analysis (TADA). To examine the
robustness of this technique, we performed a large scale simulation study and
found that NBDA using WAIC could recover the correct model of social transmission
under a wide range of cases, including under the presence of random effects,
individual level variables, and alternative models of social transmission. This
work suggests that NBDA is an effective and widely applicable tool for uncovering
whether social transmission underpins the spread of a novel behavior, and may
still provide accurate results even when key model assumptions are relaxed.