Results 71 to 80 of about 48,174 (313)

Detection of differential item functioning in the graded response model

open access: yes, 1993
Methods for detecting differential item functioning (DIF) have been proposed primarily for the item response theory dichotomous response model. Three measures of DIF for the dichotomous response model are extended to include Samejima’s graded ...
Kim, Seock-Ho   +2 more
core   +1 more source

Detecting Differential Item Functioning using Multiple-group Cognitive Diagnosis Models

open access: yes, 2020
Detecting Differential Item Functioning using Multiple-group Cognitive Diagnosis ...
Wenchao Ma
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

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

DIFFERENTIAL ITEM FUNCTIONING (KEBERBEDAAN FUNGSI BUTIR)

open access: yes, 2017
This paper theoretically deals some aspects related to Differential Item Functioning (DIF), consisting of Test and Test Bias. The purpose of this is to describe the importance of understanding Different Item Functioning or to discuss its existence. Based
Ismail, Muh. Ilyas
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +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  

A new method for detecting differential item functioning in the Rasch model [PDF]

open access: yes
Differential item functioning (DIF) can lead to an unfair advantage or disadvantage for certain subgroups in educational and psychological testing. Therefore, a variety of statistical methods has been suggested for detecting DIF in the Rasch model.
Carolin Strobl   +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

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