Results 161 to 170 of about 13,961,135 (286)

A MATLAB Package for Markov Chain Monte Carlo with a Multi-Unidimensional IRT Model [PDF]

open access: yes
Unidimensional item response theory (IRT) models are useful when each item is designed to measure some facet of a unified latent trait. In practical applications, items are not necessarily measuring the same underlying trait, and hence the more general ...
Yanyan Sheng
core  

The Development of Rheumatoid Arthritis–Specific Ambulatory Care–Sensitive Conditions: Results of a Consensus Process

open access: yesArthritis Care &Research, EarlyView.
Objective Ambulatory care–sensitive conditions (ACSCs) serve as indicators of access, quality, and performance of the health system. This study aimed to determine rheumatoid arthritis (RA)‐specific ACSCs for use in the evaluation of care system access and quality.
Kara Irwin   +7 more
wiley   +1 more source

Estimating the Multilevel Rasch Model: With the lme4 Package [PDF]

open access: yes
Traditional Rasch estimation of the item and student parameters via marginal maximum likelihood, joint maximum likelihood or conditional maximum likelihood, assume individuals in clustered settings are uncorrelated and items within a test that share a ...
Maritza Dowling   +3 more
core  

Individuals With Multijoint Osteoarthritis Demonstrate Larger Longitudinal Declines in Frailty: Data From the Canadian Longitudinal Study on Aging

open access: yesArthritis Care &Research, EarlyView.
Objective The aim of this study was to test the hypothesis that multijoint osteoarthritis would modify the relation between time and frailty progression, in which more affected joints would lead to larger declines over six years compared to those without osteoarthritis using data from the Canadian Longitudinal Study on Aging.
Carson Halliwell   +2 more
wiley   +1 more source

ITEM Grenseffectenrapportage 2017, Dossier 3: Sociale Zekerheid: Wijzigingsvoorstellen Verordening 883/2004 en 987/2009

open access: yes, 2017
De wijzigingsvoorstellen voor Coördinatieverordening 883/2004 en de ex ante ...
ITEM, Montebovi, Saskia
core  

Real‐world effectiveness and safety of secukinumab in giant cell arteritis: an Italian multicentre cohort study

open access: yesArthritis Care &Research, Accepted Article.
Objective The objective of this study was to evaluate the real‐world effectiveness and safety of secukinumab in giant cell arteritis (GCA) patients. Methods This multicentre retrospective study included patients with GCA who received secukinumab at 14 Italian centres with at least 6 months of follow‐up.
Luca Iorio   +29 more
wiley   +1 more source

Flexible Rasch Mixture Models with Package psychomix [PDF]

open access: yes
Measurement invariance is an important assumption in the Rasch model and mixture models constitute a flexible way of checking for a violation of this assumption by detecting unobserved heterogeneity in item response data.
Carolin Strobl   +3 more
core  

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