Results 121 to 130 of about 21,112,499 (262)

Markov Chain Monte Carlo Estimation of Normal Ogive IRT Models in MATLAB [PDF]

Modeling the interaction between persons and items at the item level for binary response data, item response theory (IRT) models have been found useful in a wide variety of applications in various fields. This paper provides the requisite information and
Yanyan Sheng
core  

Metastatic niche shaped by host factors influences disseminated cancer cell fate

FEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward, Álvaro Ruiz‐Tabas, Patricia Altea‐Manzano   +2 more
wiley   +1 more source

Avaliação de desempenho logístico no serviço ao cliente baseada na teoria da resposta ao item [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Produção, Florianópolis, 2011A busca por alternativas para avaliar o desempenho logístico foi o que instigou esta pesquisa.
Vey, Ivan Henrique
core  

Tutorial on Analyzing Patient‐Reported Outcome Measures in Clinical Development

Clinical and Translational Science
Patient‐reported outcomes (PROs) are now considered essential components of clinical development and regulatory assessment. Despite their widespread collection, PRO data remain under‐utilized, with analyses often limited to descriptive summaries or ...
Krina Mehta, Jim H. Hughes, Jiawei Zhou, Benyam Muluneh, Ari Gnanasakthy   +4 more
doaj   +1 more source

Employment of Item Response Theory to measure change in Children's Analogical Thinking Modifiability Test

Estudos de Psicologia (Campinas)
Dynamic testing, with an intermediate phase of assistance, measures changes between pretest and post-test assuming a common metric between them. To test this assumption we applied the Item Response Theory in the responses of 69 children to dynamic ...
Odoisa Antunes de Queiroz, Ricardo Primi, Lucas de Francisco Carvalho, Sônia Regina Fiorim Enumo   +3 more
doaj   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

FEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Multilevel IRT Modeling in Practice with the Package mlirt [PDF]

Variance component models are generally accepted for the analysis of hierarchical structured data. A shortcoming is that outcome variables are still treated as measured without an error.
Jean-Paul Fox
core  

The Dirichlet Dual Response Model: An Item Response Model for Continuous Bounded Interval Responses

Data and analyses scripts for the article "The Dirichlet Dual Response Model: An Item Response Model for Continuous Bounded Interval Responses"
Daniel W. Heck, Matthias Kloft
core   +1 more source

Bias Reduction in Robust Mean–Geometric Mean Linking via SIMEX

Algorithms
Robust mean–geometric mean (MGM) linking is a method for comparing the performance of two groups on a test involving dichotomous items and is particularly suited to settings with fixed and sparse differential item functioning (DIF).
Alexander Robitzsch
doaj   +1 more source

An Item Response Model for True-False Exams Based on Signal Detection Theory. [PDF]

Appl Psychol Meas, 2020
DeCarlo LT.
europepmc   +1 more source