Results 41 to 50 of about 41,119 (165)

anchors: Software for Anchoring Vignette Data

Journal 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  

Funcionamento diferencial dos itens do Teste Cloze por Opção

Arquivos Brasileiros de Psicologia, 2011
This study analyzed the differential item functioning of Teste Cloze por Opção EM/U that assess collectively reading comprehension. The subjects were 489 students.
Maria Cristina Rodrigues Azevedo Joly, Nayane Martoni Piovezan   +1 more
doaj  

Measurement Comparability of Reading in the English and French Canadian Populations: Special Case of the 2011 Progress in International Reading Literacy Study

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
doaj   +1 more source

Examination of differential item functioning in PISA through univariate and multivariate matching differential item functioning

International Journal of Assessment Tools in Education
The present research aims to examine whether the questions in the Program for the International Student Assessment (PISA) 2009 reading literacy instrument display differential item functioning (DIF) among the Turkish, French, and American samples based ...
Nizamettin Koç, Ahmet Yıldırım
doaj  

Investigating the Impact of Item Parameter Drift for Item Response Theory Models with Mixture Distributions

Frontiers in Psychology, 2016
This study investigates the impact of item parameter drift (IPD) on parameter and ability estimation when the underlying measurement model fits a mixture distribution, thereby violating the item invariance property of unidimensional item response theory (
Yoon Soo ePark, Young-Sun eLee, Kuan eXing   +2 more
doaj   +1 more source

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
doaj   +1 more source

Bias-Corrected Root Mean Square Deviation Estimators

Foundations
The 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
doaj   +1 more source

Exploring differential item functioning in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)

BMC Musculoskeletal Disorders, 2012
Background The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is a widely used patient reported outcome in osteoarthritis. An important, but frequently overlooked, aspect of validating health outcome measures is to establish if ...
Pollard Beth, Johnston Marie, Dixon Diane   +2 more
doaj   +1 more source

Use of differential item functioning (DIF) analysis for bias analysis in test construction

SA Journal of Industrial Psychology, 2004
When differential item functioning (DIF) item analysis procedures based on item response theory (IRT) are used during test construction, it is possible to draw item characteristic curves for the same item for different subgroups.
Marié De Beer
doaj   +1 more source

Ethnic differential item functioning in the assessment of quality of life in cancer patients

Health and Quality of Life Outcomes, 2005
Background Past research has shown that Filipino cancer patients report lower levels of quality of life (QoL) than other ethnic groups. One possible explanation for this is that Filipinos do not define QoL in the same manner as others, resulting in bias ...
Gotay Carolyn C, Pagano Ian S
doaj   +1 more source