Refereed publications and technical reports

  • Frick H, Kosmidis I (2017). trackeR: Infrastructure for Running and Cycling Data from GPS-Enabled Tracking Devices in R. Journal of Statistical Software, 82(7).

  • Frick H, Strobl C, Zeileis A (2015). Rasch Mixture Models for DIF Detection: A Comparison of Old and New Score Specifications. Educational and Psychological Measurement, 75(2).

  • Frick H, Strobl C, Zeileis A (2014). To Split or to Mix? Tree vs. Mixture Models for Detecting Subgroups. COMPSTAT 2014 - Proceedings in Computational Statistics, pp. 379–386. The International Statistical Institute/International Association for Statistical Computing. ISBN 978-2-8399-1347-8. [.pdf]

  • Frick U, Frick H, Langguth B, Landgrebe M, Hübner-Liebermann B, Hajak G (2013). The Revolving Door Phenomenon Revisited: Time to Readmission in 17’415 Patients with 37’697 Hospitalisations at a German Psychiatric Hospital. PLOS ONE, 8(10).

  • Frick H, Strobl C, Leisch F, Zeileis A (2012). Flexible Rasch Mixture Models with Package psychomix. Journal of Statistical Software, 48(7).

  • Gmel G, Shield K, Frick H, Kehoe T, Gmel G, Rehm J (2011). Estimating Uncertainty of Alcohol-Attributable Fractions for Infectious and Chronic Diseases. BMC Medical Research Methodology, 11(1).

  • Frick H (2010). Mixtures of Rasch Models Based on Conditional Maximum Likelihood Estimation: Implementation, Validation and Generalization of Rost’s Approach. Masters Thesis, Department of Statistics, Ludwig-Maximilians-Universität München.

  • Frick U, Frick H (2010). ‘Drehtüre’ in der stationären Psychiatrie der Schweiz? Mythos oder empirische Realität? Obsan Dossier 12, Schweizerisches Gesundheitsobservatorium Obsan.

  • Frick U, Frick H (2010a). ‘Heavy Use’ in der stationären Psychiatrie der Schweiz? Ergebnisse aus der Medizinischen Statistik der Krankenhäuser. Obsan Dossier 11, Schweizerisches Gesundheitsobservatorium Obsan.

  • Frick U, Frick H (2008). Basisdaten stationärer psychiatrischer Behandlungen: Vertiefungsstudie `Heavy User’ - Literaturanalyse. Forschungsprotokoll 5. Schweizerisches Gesundheitsobservatorium Obsan.

PhD thesis

Mixture Models in Statistics and Psychometrics - Detecting Subgroups and Differential Item Functioning (2014, Department of Mathematics, Universität Innsbruck) [.pdf]