Results 101 to 110 of about 170,681 (274)

Comparison of the Group and Intercept Coefficient from HGLM-DIF and LR-DIF Methods

open access: yes, 2020
Hierarchical linear model (HLM) studies have been widely used in social science and educational research. The pivotal aim of the study is the comparison of the similarity between group coefficients and intercept that are gained from the analyses of ...
Tülin Acar
core  

Exploring How Known‐Answer Questions Are Used in Conversations About Funerals Between People With Learning Disabilities and Support Staff

open access: yesBritish Journal of Learning Disabilities, EarlyView.
ABSTRACT Background People with learning disabilities should be involved in conversations around funerals. Conversation‐starter pictures were developed to support funeral conversations between people with a learning disability and support staff.
Andrea Bruun, Rebecca Anderson‐Kittow
wiley   +1 more source

The Relationship between Differential Distractor Functioning (DDF) and Differential Item Functioning (DIF): If DDF Occurs, Must DIF Occur? [PDF]

open access: yes, 2020
Differential Distractor Functioning (DDF) and Differential Item Functioning (DIF) are two critical ways for detecting potential test fairness issues. The current study aims to illustrate the relationship between the existence of DDF and that of DIF by ...
Deng, Jiayi
core  

DIF Analysis with Unknown Groups and Anchor Items

open access: yes, 2023
Ensuring fairness in instruments like survey questionnaires or educational tests is crucial. One way to address this is by a Differential Item Functioning (DIF) analysis, which examines if different subgroups respond differently to a particular item ...
Chen, Yunxiao   +2 more
core   +1 more source

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

open access: yesBritish 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

Toward a validated European instrument to measure the socioeconomic impact of cancer. [PDF]

open access: yesInt J Cancer
What's new? The Financial Index of Toxicity (FIT) evaluates patients' experiences of financial strain after cancer diagnosis. Originally developed in Canada for head and neck cancer patients, the applicability of FIT to other populations remains uncertain. This study assessed the validity of FIT in Europe using patient‐level data from six countries and
Ubels J   +6 more
europepmc   +2 more sources

Temperature integration and DIF in cut chrysanthemum

open access: yes, 2003
To reduce energy consumption in greenhouses, temperature integration can be used. However, the temperature integration principle considers only average temperatures and does not comply with the DIF concept (difference between mean day temperature and ...
Challa, H., Korner, O.
core   +1 more source

Alignment as an alternative to anchor purification in DIF analyses

open access: yes, 2020
Unbalanced differential item functioning (DIF) occurs when the items favoring group 1 are not balanced by items favoring group 2. This creates false differences in the total score used for matching examinee subgroups or inaccuracy in the scaling used to ...
DeMars, Christine E
core   +1 more source

Detailed Opacity Calculations for Astrophysical Applications

open access: yesAtoms, 2017
Nowadays, several opacity codes are able to provide data for stellar structure models, but the computed opacities may show significant differences. In this work, we present state-of-the-art precise spectral opacity calculations, illustrated by stellar ...
Jean-Christophe Pain   +2 more
doaj   +1 more source

Differential item functioning detection across multiple groups

open access: yesBritish 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

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