Results 121 to 130 of about 6,998,284 (279)

Medida del funcionamiento diferencial del ítem en el marco de la teoría de respuesta al ítem

open access: yesInterdisciplinaria, 2007
En el estudio del funcionamiento diferencial del ítem (DIF - differential item functioning) la medición de su tamaño proporciona información relevante.
María Ester Aguerri   +4 more
doaj  

Generalized Cochran-Mantel-Haenszel Test Statistics for Correlated Categorical Data

open access: yes, 1996
S Three new test statistics are introduced for correlated categorical data in stratified R \Theta C tables. They are similar in form to the standard generalized Cochran-Mantel-Haenszel statistics but modified to handle correlated outcomes.
Dennis D. Boos, Jie Zhang
core  

Risk Analysis in Cohort Studies with Heterogeneous Strata. A Global χ2-Test for Dose-Response Relationship, Generalizing the Mantel-Haenszel Procedure

open access: yes, 1990
In cohort studies the Mantel-Haenszel estimator OR̂ MH is computed from sample data and is used as a point estimator of relative risk.
W. Ahlborn, H.-J. Tuz, K. Überla
core   +1 more source

Using multilabel classification neural network to detect intersectional DIF with small sample sizes

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract This study introduces InterDIFNet, a multilabel classification neural network for detecting intersectional differential item functioning (DIF) in educational and psychological assessments, with a focus on small sample sizes. Unlike traditional marginal DIF methods, which often fail to capture the effects of intersecting identities and require ...
Yale Quan, Chun Wang
wiley   +1 more source

Refining effect size measures and classification for differential item functioning: Toward unified guidelines across methods

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Differential Item Functioning (DIF) analysis is used to identify potentially biased items in multi‐item measurements. In addition to testing the statistical significance, it is essential to evaluate the practical significance of DIF through effect size measures.
Michaela Cichrová   +2 more
wiley   +1 more source

A Comparison Between Some Generalized Mantel-Haenszel Statistics for Detecting DIF in Data Simulated Under the Graded Response Model

open access: yes, 2010
The main objective of this study was to establish the relative efficacy of the generalized Mantel-Haenszel test (GMH) and the Mantel test for detecting large numbers of differential item functioning (DIF) patterns.
Ángel M. Fidalgo   +3 more
core   +1 more source

Beyond HEMA: Shifts in the (Meth)acrylate Composition of Matched Nail Cosmetics Between 2023 and 2026

open access: yesContact Dermatitis, EarlyView.
In 127 matched nail cosmetics, 2‐hydroxyethyl methacrylate (HEMA) and Di‐HEMA trimethylhexyl dicarbamate (Di‐HEMA TMHDC) listings decreased by approximately 75% between 2023 and 2026. Several other (meth)acrylate‐related ingredients also showed substantial increases or decreases.
Norbertus A. Ipenburg   +2 more
wiley   +1 more source

METHODS AND SOFTWARE FOR RESEARCH OF THE VALIDITY OF TEST RESULTS FOR THE TESTED GROUPS WITH CERTAIN INDIVIDUAL CHARACTERISTICS

open access: yesІнформаційні технології і засоби навчання, 2016
The necessary condition for the presence of biased assessment by some test is differential item functioning in different groups of test takers. The ideas of some statistical methods for detecting Differential Item Functioning are described in the given ...
Tetiana V. Lisova
doaj  

A lipid‐sensitive food choice behavior influences aging outcomes from a longevity‐promoting diet

open access: yesThe FEBS Journal, EarlyView.
C. elegans are exposed to a variety of bacteria in their natural environment and must be able to distinguish between beneficial and detrimental food sources. We show that C. elegans exposed to the bacterium from their natural habitat, Methylobacterium, disrupts lipid homeostasis, causing worms to avoid this bacterial species and choose the laboratory ...
Nicole L. Stuhr   +4 more
wiley   +1 more source

The Development and Validation of the Chinese Vocabulary Levels Test

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT In response to the increasing need for effective Chinese vocabulary assessments, this study developed the Chinese Vocabulary Levels Test (CVLT), a test designed for intermediate‐level Chinese as a second or foreign language (CSL/FL) learners, based on the vocabulary lists (levels 4–6) from the Chinese Proficiency Grading Standards for ...
Shiwei Qi, Ailan Fu
wiley   +1 more source

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