64 citations · 184 across the 34 of their papers we have counts for
8 papers · 1 filter
A multilevel finite mixture item response model to cluster examinees and schools
Michela Gnaldi, Silvia Bacci, Francesco Bartolucci
Within the educational context, a key goal is to assess students acquired skills and to cluster students according to their ability level. In this regard, a relevant element to be…
Item selection by Latent Class-based methods
Francesco Bartolucci, Giorgio E. Montanari, Silvia Pandolfi
The evaluation of nursing homes is usually based on the administration of questionnaires made of a large number of polytomous items. In such a context, the Latent Class (LC) model…
Joint Assessment of the Differential Item Functioning and Latent Trait Dimensionality of Students' National Tests
Michela Gnaldi, Francesco Bartolucci, Silvia Bacci
Within the educational context, students' assessment tests are routinely validated through Item Response Theory (IRT) models which assume unidimensionality and absence of Different…
MultiLCIRT: An R package for multidimensional latent class item response models
Francesco Bartolucci, Silvia Bacci, Michela Gnaldi
We illustrate a class of Item Response Theory (IRT) models for binary and ordinal polythomous items and we describe an R package for dealing with these models, which is named Multi…
An investigation of the discriminant power and dimensionality of items used for assessing health condition of elderly people
Francesco Bartolucci, Giorgio d'Agostino, Giorgio E. Montanari
With reference to the questionnaire adopted within the Italian project "Ulisse" to assess health condition of elderly people, we investigate two important issues: discriminant powe…
Assessment of school performance through a multilevel latent Markov Rasch model
Francesco Bartolucci, Fulvia Pennoni, Giorgio Vittadini
An extension of the latent Markov Rasch model is described for the analysis of binary longitudinal data with covariates when subjects are collected in clusters, e.g. students clust…