10 citations · 11 across the 5 of their papers we have counts for
5 papers
A Latent Variable Model for Response Times with Individual-Specific Change-Points
Gabriel Wallin, Nivedita Bhaktha
Response times collected in computerised assessments provide information about the underlying response process and may exhibit within-person variation over the course of a test. We…
Latent Impact and Differential Item Functioning Analysis for Asymmetric IRT Models
Gabriel Wallin, Qi Huang
Differential item functioning (DIF) arises alongside latent population heterogeneity in many applications, and both must be accounted for when assessing measurement invariance. In…
Propensity Score Methods for Local Test Score Equating: Stratification and Inverse Probability Weighting
Gabriel Wallin, Marie Wiberg
In test equating, ensuring score comparability across different test forms is crucial but particularly challenging when test groups are non-equivalent and no anchor test is availab…
DIF Analysis with Unknown Groups and Anchor Items
Gabriel Wallin, Yunxiao Chen, Irini Moustaki
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 exa…
Rotation to Sparse Loadings using Losses and Related Inference Problems
Xinyi Liu, Gabriel Wallin, Yunxiao Chen +1
Researchers have widely used exploratory factor analysis (EFA) to learn the latent structure underlying multivariate data. Rotation and regularised estimation are two classes of me…