Bayesian Analysis of Heterogeneous Residual Variance in Canine Behaviour

Stéphanie Martine van den Berg, Inga Schwabe, W.F. Fikse, H.C.M. Heuven, Cornelis A.W. Glas

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

18 Downloads (Pure)

Abstract

Non-additive effects like for instance genotype-environment interactions and genetically structured heterogeneity of residual variance are notoriously dependent on scale: many statistical non-additive phenomena disappear after a careful choice of transformation of the phenotypic values. Particularly for behavioural measures, scale is a delicate matter. We present a novel Bayesian approach that assesses heterogeneity in environmental variance as a function of genetic effects, where the scale is defined by a psychometric model based on item-response theory. This makes analysis results independent of what items are in a particular test version. We apply the method to fearful behaviour in dogs and compare results with the more usual sum score approach
Original languageEnglish
Title of host publicationProceedings, 10th World Congress of Genetics Applied to Livestock Production
Place of PublicationVancouver
Pages-
Publication statusPublished - 17 Aug 2014
Event10th World Congress of Genetics Applied to Livestock Production, WCGALP 2014 - Vancouver, Canada
Duration: 17 Aug 201422 Aug 2014
Conference number: 10
https://asas.confex.com/asas/WCGALP14/webprogram/start.html

Conference

Conference10th World Congress of Genetics Applied to Livestock Production, WCGALP 2014
Abbreviated titleWCGALP
CountryCanada
CityVancouver
Period17/08/1422/08/14
Internet address

Keywords

  • IR-93489
  • METIS-307771

Fingerprint Dive into the research topics of 'Bayesian Analysis of Heterogeneous Residual Variance in Canine Behaviour'. Together they form a unique fingerprint.

Cite this