Results 11 to 20 of about 17,085,203 (180)
Flexible Rasch Mixture Models with Packagepsychomix [PDF]
Journal of Statistical Software, 2012 Measurement invariance is an important assumption in the Rasch model and mixture models constitute a flexible way of checking for a violation of this assumption by detecting unobserved heterogeneity in item response data. Here, a general class of Rasch mixture models is established and implemented in R, using conditional maximum likelihood esti- mation
Frick, Hannah +3 more
openaire +8 more sources
Rasch Mixture Models for DIF Detection [PDF]
Educational and Psychological Measurement, 2014 Rasch mixture models can be a useful tool when checking the assumption of measurement invariance for a single Rasch model. They provide advantages compared to manifest differential item functioning (DIF) tests when the DIF groups are only weakly correlated with the manifest covariates available.
Frick, Hannah +2 more
openaire +7 more sources
A Mixture Rasch Model Analysis of Mathematics Achievement
Kastamonu Eğitim Dergisi, 2023 Purpose: This study aims to determine distinct latent classes in 8th-grade students' mathematics achievement Design: The research study group consisted of 435 students who received the first booklet at the TIMSS 2015 8th grade mathematics achievement test. A mixture of Rasch model analysis was used to find the best-fitting model.
YILDIRIM HOŞ, Halime +1 more
openaire +4 more sources
Asian Journal for Mathematics Education, 2022 Rational numbers and proportional reasoning are challenging topics in school mathematics. Though much research has been conducted, the learning of these topics is rarely explored among learners taught by expert teachers.
Zhenzhen Miao +3 more
doaj +1 more source
Supramolecular Mechanophore Additives Enable Mechanochromic Hydrogels. [PDF]
Angew Chem Int Ed EnglA supramolecular loop‐forming mechanophore featuring a quencher and an emitter is incorporated as a water‐soluble macromolecular additive into hydrogels. In the stress‐free state, intramolecular charge‐transfer interactions fold the loop and quench fluorescence.
Scarlat I, Clough JM, Weder C.
europepmc +3 more sources
European Journal of Personality, EarlyView., 2020 Abstract Few studies have examined birth order effects on personality in countries that are not Western, educated, industrialized, rich, and democratic (WEIRD). However, theories have generally suggested that interculturally universal family dynamics are the mechanism behind birth order effects, and prominent theories such as resource dilution would ...
Laura J. Botzet +2 more
wiley +1 more source
, 2021 Contingency table for agreement between the bookmark procedure (BM) and constrained Mixture Rasch Model (cMRM).
Tabea Feseker (11767195) +2 more
core +1 more source
Strong Gaussian approximation of the mixture Rasch model [PDF]
Bernoulli, 2019 We consider the famous Rasch model, which is applied to psychometric surveys when n persons under test answer m questions. The score is given by a realization of a random binary (n,m)-matrix. Its (j,k)th component indicates whether or not the answer of the jth person to the kth question is correct.
Liese, Friedrich +2 more
openaire +3 more sources
A new method for detecting differential item functioning in the Rasch model [PDF]
, 2010 Differential item functioning (DIF) can lead to an unfair advantage or disadvantage for certain subgroups in educational and psychological testing. Therefore, a variety of statistical methods has been suggested for detecting DIF in the Rasch model.
Zeileis, Achim +2 more
core +1 more source
, 2021 Measures for agreement between the bookmark procedure (BM) and constrained Mixture Rasch Model (cMRM) in different samples.
Tabea Feseker (11767195) +2 more
core +1 more source