Results 81 to 90 of about 21,112,499 (262)

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

, 2010
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.
Zeileis, Achim, Kopf, Julia, Strobl, Carolin   +2 more
core   +1 more source

Linking Error Estimation in Fixed Item Parameter Calibration: Theory and Application in Large-Scale Assessment Studies

Foundations
In fixed item parameter calibration (FIPC), an item response theory (IRT) model is estimated with item parameters fixed at reference values to estimate the distribution parameters within a specific group.
Alexander Robitzsch
doaj   +1 more source

The Dirichlet Dual Response Model: An Item Response Model for Continuous Bounded Interval Responses. [PDF]

Psychometrika, 2023
Kloft M, Hartmann R, Voss A, Heck DW.
europepmc   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Identifying Unknown Response Styles: A Latent-Class Bilinear Multinomial Logit Model [PDF]

Respondents can vary significantly in the way they use rating scales. Specifically, respondents can exhibit varying degrees of response style, which threatens the validity of the responses.
Herk, H. van, Rosmalen, J.M. van, Groenen, P.J.F.   +2 more
core  

An Evaluation of Overall Goodness-of-Fit Tests for the Rasch Model

Frontiers in Psychology, 2019
For assessing the fit of item response theory models, it has been suggested to apply overall goodness-of-fit tests as well as tests for individual items and item pairs.
Rudolf Debelak
doaj   +1 more source

A New Approach to Desirable Responding: Multidimensional Item Response Model of Overclaiming Data. [PDF]

Appl Psychol Meas, 2023
Jin KY, Paulhus DL, Shih CL.
europepmc   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Analyzing the psychometric properties of the PHQ-9 using item response theory in a Chinese adolescent population

Annals of General Psychiatry
Background People are more likely to fall victim to depression during adolescence since it is a period of rapid biopsychosocial transformation. Despite this, most depression research has concentrated on clinical issues, and evaluating depressive symptoms
Xuliang Gao, Ziyu Liu
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source