Bias-Corrected Root Mean Square Deviation Estimators
FoundationsThe root mean square deviation (RMSD) is a widely used item fit statistic in item response models. However, the sample RMSD is known to exhibit positive bias in small samples. To address this, seven alternative bias-corrected RMSD estimators are proposed
Alexander Robitzsch
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Determining Gender Differential Item Functioning for Mathematics in Coeducational School Culture
Malaysian Journal of Learning and Instruction, 2019 Purpose - In an attempt to explore item characteristics that behave differently between boys and girls, this comparative study examines gender Differential Item Functioning in a school culture that is noted to be ‘thriving’ mathematically ...
S. Kanageswari Suppiah Shanmugam
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Pendekatan Regresi Logistik dalam Pendektesian DIF [PDF]
, 2006 Kegiatan pengukuran dalam bidang pendidikan sangat memerlukan suatu alat ukur yang mengukur sesuai dengan apa yang hendak diukur dan tidak terpengaruh faktor luar yang tidak diukur.
Kana, Hidayati
core
MIMIC Models for Uniform and Nonuniform DIF as Moderated Mediation Models. [PDF]
, 2020 In this article, the authors describe how multiple indicators multiple cause (MIMIC) models for studying uniform and nonuniform differential item functioning (DIF) can be conceptualized as mediation and moderated mediation models.
Jeon, Minjeong, Montoya, Amanda K
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Differential Item Functioning (DIF): What Functions Differentlyfor Immigrant Students in PISA 2009 Reading Items? [PDF]
, 2012 This analysis focuses on identifying items that present Differential Item Functioning (DIF) between native and immigrant students in the PISA 2009 reading assessment. The findings indicate that thirty-five percent of the 95 items or questions included in
DE SOUSA LOBO BORGES DE ARAUJO LUISA +1 more
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A Nonparametric Bayesian Model for Detecting Differential Item Functioning: An Application to Political Representation in the US [PDF]
, 2023 Yuki Shiraito +2 more
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Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS 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
Frontiers in Education, 2019 The purpose of this study is to examine item equivalence and score comparability of the Progress in International Reading Literacy Study (PIRLS) 2011 for the Canadian French and English language groups.
Shawna Goodrich, Kadriye Ercikan
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Measuring Moral Reasoning using Moral Dilemmas: Evaluating Reliability, Validity, and Differential Item Functioning of the Behavioral Defining Issues Test (bDIT) [PDF]
, 2019 We evaluated the reliability, validity, and differential item functioning (DIF) of a shorter version of the Defining Issues Test-1 (DIT-1), the behavioral DIT (bDIT), measuring the development of moral reasoning.
Choi, Youn-Jeng +4 more
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FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source