Background Comparisons of mortality patterns between different migrant groups, and
between migrants and natives, are relevant to understanding, and ultimately reducing …

Background The authors studied injury mortality in Denmark among refugees and
immigrants compared with that among native Danes. Method A register-based, historical …

Measuring change in a latent variable over time is often done using the same instrument at
several time points. This can lead to dependence between responses across time points for …

The growing use of Patient Reported Outcomes (PRO's) calls for user friendly software to fit
IRT models in standard software like SAS or R. This paper describes a SAS macro …

ABSTRACT INTRODUCTION: The aim of this study was to compare cancer mortality among
migrant patients with cancer mortality in Danish-born patients. MATERIAL AND METHODS …

This paper describes different Rasch models for longitudinal data. An overview of marginal
maximum likelihood (MML) estimation and conditional maximum likelihood (CML) …

Item response theory models are often applied when a number items are used to measure a
unidimensional latent variable. Originally proposed and used within educational research …

IRT models are often applied when observed items are used to measure a unidimensional
latent variable. Originally used in educational research, IRT models are now widely used …

Item response theory models are often applied when a number items are used to measure a
unidimensional latent variable. Originally proposed and used within educational research …

IRT models are often applied when a number items are used to measure a unidimensional
latent variable. Originally proposed and used within educational research, IRT models are …