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Ivailo Partchev

Solving problems involving data

Ivailo is our best speaker of Bulgarian. Before Cito he had an international career and worked at the Central Statistical Office Bulgaria, the Bulgarian Academy of Sciences, Sofia University, LMU Munich, University of Jena and KU Leuven. Ivailo has a BA in Statistics, a PhD in Sociology and a diploma in International Relations.
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dr. Ivailo Partchev | wetenschappelijk onderzoeker
R packages:

  • irtoys
  • irtrees
  • dexter
“I'm good at R programming, solving problems involving data, empirical study of social and political structures. And I can get into trouble in many languages." 
Ivailo Partchev

Publications that others seem to cite: 

  • De Boeck, Paul; Bakker, Marjan; Zwitser, Robert; Nivard, Michel; Hofman, Abe; Tuerlinckx, Francis; Partchev, Ivailo. The estimation of item response models with the lmer function from the lme4 package in R. Journal of Statistical Software, 39, 12, 1-28, 2011.
  • De Boeck, Paul; Partchev, Ivailo. IRTrees: Tree-based item response models of the GLMM family, Journal of Statistical Software, 48, 1, 1-28, 2012.
  • Partchev, Ivailo; De Boeck, Paul. Can fast and slow intelligence be differentiated? Intelligence, 40, 1, 23-32, 2012.
  • Steyer, Rolf; Partchev, Ivailo; Shanahan, Michael J. Modeling true intraindividual change in structural equation models: The case of poverty and children’s psychosocial adjustment. In: Modeling longitudinal and multilevel data: Practical issues, applied approaches, and specific examples, p.109-126, 2000.