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Joakim Wallmark
Contact
E-mail
joakim.wallmark@umu.se
Phone
+46 90 786 63 67
Works as
Affiliation
Postdoctoral fellow
at
Umeå School of Business, Economics and Statistics (USBE)
Section: Statistics
Location
Samhällsvetarhuset, Biblioteksgränd 6
Umeå universitet, 901 87 Umeå
Publications
Publications
2025
Using the information metric to analyze clinical rating scales
Journal of educational and behavioral statistics
Ramsay, James O.; Li, Juan; Bernstein, Charles N.; et al.
2025
An information manifold perspective for analyzing test data
Applied psychological measurement
, Sage Publications 2025, Vol. 49, (3) : 90-108
Ramsay, James O.; Li, Juan; Wallmark, Joakim; et al.
2025
Extensions and applications of item response theory
Statistical studies
, 60
Wallmark, Joakim
2024
Analyzing polytomous test data: a comparison between an information-based IRT model and the generalized partial credit model
Journal of educational and behavioral statistics
, Sage Publications 2024, Vol. 49, (5) : 753-779
Wallmark, Joakim; Ramsay, James O.; Li, Juan; et al.
2023
Efficiency analysis of item response theory kernel equating for mixed-format tests
Applied psychological measurement
, Sage Publications 2023, Vol. 47, (7-8) : 496-512
Wallmark, Joakim; Josefsson, Maria; Wiberg, Marie
2023
Kernel equating presmoothing methods: an empirical study with mixed-format test forms
Quantitative psychology: The 87th annual meeting of the psychometric society, Bologna, Italy, 2022
, Springer 2023 : 49-59
Wallmark, Joakim; Josefsson, Maria; Wiberg, Marie
IRTorch: an Item Response Theory Python package
Wallmark, Joakim
Introducing flexible monotone multiple choice item response theory models and bit scales
Wallmark, Joakim; Josefsson, Maria; Wiberg, Marie
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