R-Pakete

 
Item Response Modeling / Latent Structure Models

  • CDM  Cognitive Diagnosis Modeling (with T. Kiefer, A. C. George & A. Ünlü)

    • DINA, DINO and mixed DINA/DINO model (din, din.deterministic)
    • GDINA model (de la Torre, 2011; gdina): multiple groups, higher order GDINA, polytomous skills (Chen & de la Torre, 2013)
    • Multiple choice DINA model (de la Torre, 2009; mcdina): multiple groups, group-specific item parameters, polytomous skills
    • General diagnostic model (GDM; von Davier, 2008; gdm) for polytomous item responses with ordered discrete or continuous latent variables and an option for estimating trait locations (Bartolucci, 2007)
    • Structured latent class analysis (SLCA; Formann, 1992, slca): Multidimensional IRT model, Latent class model, Located latent class model, mixture IRT model, cognitive diagnostic models, ...
    • Tests of item fit (itemfit.sx2)and absolute model fit, local dependence and fit statistics (modelfit.cor.din), differential item functioning (gdina.dif)
    • Q-matrix validation (din.validate.qmatrix)
                CRAN version 3.3-24 (2014-05-25)     NEWS   INDEX  crantastic   rdocumentation
                Development version 3.4-4 (2014-06-01)  zip   tar.gz  pdf

                CRAN version 0.45-23 (2014-05-30)     NEWS   INDEX    crantastic   rdocumentation
                Development version 0.45-18 (2014-05-27)  zip   tar.gz  pdf



     Some contributions: IsingFit,



Missing Data
                CRAN version 0.13-7 (2014-06-27)     NEWS   INDEX  crantastic   rdocumentation
                
Development version 0.12-8 (2014-05-01)  zip   tar.gz  pdf


Survey Statistic
  • BIFIEsurvey  Some Tools for Survey Statistics in Educational Assessment

    • Tools for handling multiply imputed datasets with replicate weights or Jackknife zones

                CRAN version 0.1-161 (2014-07-01)     NEWS   INDEX  crantastic   rdocumentation
                
Development version 0.2-vv (2014-07-dd)