Results 91 to 100 of about 2,171,385 (311)

Testis‐Enriched F‐Box Protein FBXO39 Is Important for Spermiogenesis and Male Fertility in Mice

Andrology, EarlyView.
ABSTRACT Background The SCF (Skp–Cullin–F‐box) complex is a major class of E3 ubiquitin ligases. F‐box proteins constitute the SCF complex and play a critical role in recognizing substrates for ubiquitination. In mice, several F‐box proteins, including FBXO36 and FBXO39, are predominantly expressed in testes.
Yuki Kaneda, Haruhiko Miyata, Masahito Ikawa   +2 more
wiley   +1 more source

A Comparison of Logistic Regression Models for DIF Detection in Polytomous Items: The Effect of Small Sample Sizes and Non-Normality of Ability Distributions

International Journal of Assessment Tools in Education, 2016
This study investigated the effectiveness of logistic regression models to detect uniform and non-uniform DIF in polytomous items across small sample sizes and non-normality of ability distributions.
M. David Miller, Walter L. Leite, Yasemin Kaya   +2 more
doaj   +1 more source

Between Cryptocurrencies' Risk and Crypto Environmental Attention: The Crypto Environment Attention Index and Volatility in the Cryptocurrencies Market Nexus

Business Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT This study investigates the impact of environmental attention on cryptocurrency market volatility by introducing the Crypto Environmental Attention Index (CEAI), a new metric inspired by Wang et al. (2022) and constructed using daily web search data.
Ines Ghazouani, Zaineb Hlioui, Marwa Zouawi   +2 more
wiley   +1 more source

A genetic risk score based on BCL11A and HBS1L‐MYB variants predicts clinical severity in Brazilian sickle cell anaemia patients

British Journal of Haematology, EarlyView.
Summary Individuals with sickle cell anaemia (SCA) exhibit significant clinical heterogeneity influenced by several factors, especially fetal haemoglobin (HbF) levels. Variations in adult HbF levels are partly explained by the co‐inheritance of genetic variants that regulate globin expression.
Gabriela S. Arcanjo, Alexsandro P. Silva, Madi V. Diniz, Igor F. Domingos, Diego A. Pereira‐Martins, Amanda B. Araújo, Talita S. S. França, Ana C. Anjos, Aderson S. Araujo, Edis Belini‐Junior, Sara T. O. Saad, Fernando F. Costa, Antonio R. Lucena‐Araujo, Marcos André C. Bezerra   +13 more
wiley   +1 more source

Antidumping protection hurts exporters : firm-level evidence from France [PDF]

antidumping, firm-level exports, intensive margin, extensive margin, productivity, dif-in ...
KONINGS, Jozef, VANDENBUSSCHE, Hylke
core  

IRT‐based response style models and related methodology: Review and commentary

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract We provide a review and commentary on recent methodological research related to item response theory (IRT) modelling of response styles in psychological measurement. Our review describes the different categories of IRT models that have been proposed, their associated assumptions and extensions, and the varying purposes they can serve.
Daniel M. Bolt, Lionel Meng
wiley   +1 more source

Investigating the Distractors to Explain DIF Effects Across Gender in Large-Scale Tests With Non-Linear Logistic Regression Models [PDF]

, 2022
Burhanettin Özdemir, Hanan M. Alghamdi
openalex   +1 more source

Differential item functioning detection across multiple groups

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Differential item functioning (DIF) can be investigated by estimating item response theory (IRT) parameters separately for different respondent groups, thus allowing for the detection of discrepancies in parameter estimates across groups. However, before comparing the estimates, it is necessary to convert them to a common metric due to the ...
Michela Battauz
wiley   +1 more source

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

British 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

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

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 ...
Laura E. Gibbons, Paul K. Crane, Seung W. Choi   +2 more
core   +1 more source