Publications

Welz, M., Mair, P., & Alfons, A. (2026). Robust estimation of polychoric correlation. Psychometrika, 91(1), 247–278.

[bib] [doi:10.1017/psy.2025.10066] [url]

    @article{WelMaiAlf:2026:P,
    	title            = {{R}obust estimation of polychoric correlation},
    	author           = {Welz, Max and Mair, Patrick and Alfons, Andreas},
    	journal          = {Psychometrika},
    	volume           = {91},
    	number           = {1},
    	pages            = {247--278},
    	year             = {2026},
    	doi              = {10.1017/psy.2025.10066},
    	url              = {https://www.cambridge.org/core/journals/psychometrika/article/robust-estimation-of-polychoric-correlation/5B4A21F69CB17231F9305EE7946B5098},
    }

Welz, M. (2026). Robust estimation of polyserial correlation coefficients: A density power divergence approach. Psychometrika, 91(2), 445–472.

[bib] [doi:10.1017/psy.2026.10091] [url]

    @article{Wel:2026:P,
    	title            = {{R}obust estimation of polyserial correlation coefficients: {A} density power divergence approach},
    	author           = {Welz, Max},
    	journal          = {Psychometrika},
    	volume           = {91},
    	number           = {2},
    	pages            = {445--472},
    	year             = {2026},
    	doi              = {10.1017/psy.2026.10091},
    	url              = {https://www.cambridge.org/core/journals/psychometrika/article/robust-estimation-of-polyserial-correlation-coefficients-a-density-power-divergence-approach/54811EA747669449C06AD6FAEB53F057},
    }

Welz, M., Archimbaud, A., & Alfons, A. (2026). Quantifying the impact of careless responding.

[bib] [doi:10.31234/osf.io/8fj6p_v2]

    @misc{WelArcAlf:2026:PsyArXiv,
    	title            = {{Q}uantifying the impact of careless responding},
    	author           = {Welz, Max and Archimbaud, Aurore and Alfons, Andreas},
    	year             = {2026},
    	doi              = {10.31234/osf.io/8fj6p_v2},
    }

Welz, M., Aalst, C. M. van der, Alfons, A., Naghi, A. A., Heuvelmans, M., Groen, H. J. M., Jong, P. A. de, Aerts, J., Oudkerk, M., Koning, H. J. de, & Haaf, K. ten. (2025). A comparative analysis of heterogeneity in lung cancer screening effectiveness in two randomised controlled trials. Nature Communications, 16.

[bib] [doi:10.1038/s41467-025-63471-6] [url]

    @article{WelvanAlf:2025:NatCom,
    	title            = {{A} comparative analysis of heterogeneity in lung cancer screening effectiveness in two randomised controlled trials},
    	author           = {Welz, Max and van der Aalst, C.M. and Alfons, A. and Naghi, A.A. and Heuvelmans, Marjolein and Groen, Harry J.M. and de Jong, Pim A. and Aerts, Joachim and Oudkerk, M. and de Koning, H.J. and ten Haaf, K.},
    	journal          = {Nature Communications},
    	volume           = {16},
    	year             = {2025},
    	doi              = {10.1038/s41467-025-63471-6},
    	url              = {https://www.nature.com/articles/s41467-025-63471-6},
    }

Welz, M., & Alfons, A. (2025). When respondents don’t care anymore: Identifying the onset of careless responding.

[bib] [doi:10.48550/arXiv.2303.07167]

    @misc{WelAlf:2025:arXiv,
    	title            = {{W}hen respondents don't care anymore: {I}dentifying the onset of careless responding},
    	author           = {Welz, Max and Alfons, Andreas},
    	year             = {2025},
    	doi              = {10.48550/arXiv.2303.07167},
    }

Welz, M. (2024). Robust estimation and inference for categorical data.

[bib] [doi:10.48550/arXiv.2403.11954]

    @misc{Wel:2024:arXiv,
    	title            = {{R}obust estimation and inference for categorical data},
    	author           = {Welz, Max},
    	year             = {2024},
    	doi              = {10.48550/arXiv.2403.11954},
    }

Alfons, A., & Welz, M. (2024). Open science perspectives on machine learning for the identification of careless responding: A new hope or phantom menace? Social and Personality Psychology Compass, 18(2), e12941.

[bib] [doi:10.1111/spc3.12941] [url]

    @article{AlfWel:2024:SPPC,
    	title            = {{O}pen science perspectives on machine learning for the identification of careless responding: {A} new hope or phantom menace?},
    	author           = {Alfons, Andreas and Welz, Max},
    	journal          = {Social and Personality Psychology Compass},
    	volume           = {18},
    	number           = {2},
    	pages            = {e12941},
    	year             = {2024},
    	doi              = {10.1111/spc3.12941},
    	url              = {https://compass.onlinelibrary.wiley.com/doi/full/10.1111/spc3.12941},
    }

Welz, M., Alfons, A., & Mair, P. (2024). Robcat: Robust categorical data analysis.

[bib] [url]

    @manual{WelAlfMai:2024:R,
    	title            = {robcat: {R}obust categorical data analysis},
    	author           = {Welz, Max and Alfons, Andreas and Mair, Patrick},
    	year             = {2024},
    	url              = {https://CRAN.R-project.org/package=robcat},
    	note             = {\textsf{R} package version 0.0.1},
    }

Welz, M., & Alfons, A. (2023). Carelessonset: Identifying the onset of careless responding.

[bib] [url]

    @manual{WelAlf:2023:R,
    	title            = {carelessonset: {I}dentifying the onset of careless responding},
    	author           = {Welz, Max and Alfons, Andreas},
    	year             = {2023},
    	url              = {https://github.com/mwelz/carelessonset},
    	note             = {\textsf{R} package version 0.0.1},
    }

Franses, P. H., & Welz, M. (2022). Forecasting real GDP growth for africa. Econometrics, 10(1).

[bib] [doi:10.3390/econometrics10010003] [url]

    @article{FraWel:2022:Econ,
    	title            = {{F}orecasting real {GDP} growth for Africa},
    	author           = {Franses, Philip Hans and Welz, Max},
    	journal          = {Econometrics},
    	volume           = {10},
    	number           = {1},
    	year             = {2022},
    	doi              = {10.3390/econometrics10010003},
    	url              = {https://www.mdpi.com/2225-1146/10/1/3},
    }

Welz, M., Alfons, A., Demirer, M., & Chernozhukov, V. (2022). GenericML: Generic machine learning inference.

[bib] [url]

    @manual{WelAlfDem:2022:R,
    	title            = {GenericML: {G}eneric machine learning inference},
    	author           = {Welz, Max and Alfons, Andreas and Demirer, Mert and Chernozhukov, Victor},
    	year             = {2022},
    	url              = {https://CRAN.R-project.org/package=GenericML},
    	note             = {\textsf{R} package version 0.2.2},
    }

Franses, P. H., & Welz, M. (2021). Evaluating heterogeneous forecasts for vintages of macroeconomic variables. Journal of Forecasting, 41(4), 829–839.

[bib] [doi:10.1002/for.2835] [url]

    @article{FraWel:2021:JoF,
    	title            = {{E}valuating heterogeneous forecasts for vintages of macroeconomic variables},
    	author           = {Franses, Philip Hans and Welz, Max},
    	journal          = {Journal of Forecasting},
    	volume           = {41},
    	number           = {4},
    	pages            = {829--839},
    	year             = {2021},
    	doi              = {10.1002/for.2835},
    	url              = {https://onlinelibrary.wiley.com/doi/full/10.1002/for.2835},
    }

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