2 citations · 4 across the 12 of their papers we have counts for
7 papers · 1 filter
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…
A causal analysis of mother's education on birth inequalities
Silvia Bacci, Francesco Bartolucci, Luca Pieroni
We propose a causal analysis of the mother's educational level on the health status of the newborn, in terms of gestational weeks and weight. The analysis is based on a finite mixt…
A comparison of some criteria for states selection in the latent Markov model for longitudinal data
Silvia Bacci, Silvia Pandolfi, Fulvia Pennoni
We compare different selection criteria to choose the number of latent states of a multivariate latent Markov model for longitudinal data. This model is based on an underlying Mark…
A multidimensional latent class Rasch model for the assessment of the Health-related Quality of Life
Silvia Bacci, Francesco Bartolucci
The work describes a multidimensional latent class Rasch model and its application to data about the measurement of some aspects of Health-related Quality of Life and Anxiety and D…
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…
Mixtures of equispaced normal distributions and their use for testing symmetry in univariate data
Silvia Bacci, Francesco Bartolucci
Given a random sample of observations, mixtures of normal densities are often used to estimate the unknown continuous distribution from which the data come. Here we propose the use…