Results 81 to 90 of about 4,407,326 (257)

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

anchors: Software for Anchoring Vignette Data

open access: yesJournal of Statistical Software, 2011
When respondents use the ordinal response categories of standard survey questions in different ways, the validity of analyses based on the resulting data can be biased.
Jonathan Wand, Gary King, Olivia Lau
doaj  

lordif: An R Package for Detecting Differential Item Functioning Using Iterative Hybrid Ordinal Logistic Regression/Item Response Theory and Monte Carlo Simulations [PDF]

open access: yes
Logistic regression provides a flexible framework for detecting various types of differential item functioning (DIF). Previous efforts extended the framework by using item response theory (IRT) based trait scores, and by employing an iterative process ...
Seung W. Choi   +2 more
core  

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Examination of differential item functioning in PISA through univariate and multivariate matching differential item functioning

open access: yesInternational Journal of Assessment Tools in Education
The present research aims to examine whether the questions in the Program for the International Student Assessment (PISA) 2009 reading literacy instrument display differential item functioning (DIF) among the Turkish, French, and American samples based ...
Nizamettin Koç, Ahmet Yıldırım
doaj  

Funcionamento diferencial dos itens do Teste Cloze por Opção

open access: yesArquivos Brasileiros de Psicologia, 2011
This study analyzed the differential item functioning of Teste Cloze por Opção EM/U that assess collectively reading comprehension. The subjects were 489 students.
Maria Cristina Rodrigues Azevedo Joly   +1 more
doaj  

Differential Item Functioning of the region-based national examination equipment

open access: yesREID (Research and Evaluation in Education)
This research aims to detect Differential Item Functioning (DIF) in the 2014/2015 National Examination Questions in mathematics of junior high schools and equivalent-level schools in the Yogyakarta region as a reference group and the South Kalimantan ...
Adi Setiawan   +3 more
doaj   +1 more source

Assessing Differential Item Functioning on the Test of Relational Reasoning

open access: yesFrontiers in Education, 2018
The test of relational reasoning (TORR) is designed to assess the ability to identify complex patterns within visuospatial stimuli. The TORR is designed for use in school and university settings, and therefore, its measurement invariance across diverse ...
Denis Dumas, Patricia Alexander
doaj   +1 more source

Detection of Differential Item Functioning

open access: yesMethodology, 2012
This study analyzes Differential Item Functioning (DIF) with three combined decision rules and compares the results with the variation of the Mantel-Haenszel procedure (vaMH) proposed by Mazor, Clauser, and Hambleton (1994). One decision rule combines the Mantel-Haenszel procedure (MH) with the Breslow-Day test of trend in odds ratio heterogeneity (BDT)
Pedro Prieto-Marañón   +3 more
openaire   +1 more source

Item and Scale Differential Functioning of the Mini-Mental State Exam Assessed Using the Differential Item and Test Functioning (DFIT) Framework [PDF]

open access: yes, 2006
To illustrate the application of the Differential Item and Test Functioning (DFIT) method using English and Spanish versions of the Mini-Mental State Examination (MMSE)
Morales, Leo S.   +4 more
core   +1 more source

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