Service and Management Reviewing (ad hoc) Journals The Modern Language Journal (2025) Language Variation and Change (2025) Journal of Language Variation and Sociolinguistics (2024) Journal of Linguistic Geography (2024) Languages (2024, 2x) Innovation in Language Learning and Teaching (2024) Journal of the European Second Language Association (JESLA) (2024) Book Chapters Language Learning in Later Life (2024) Acquiring Language variation: The interaction between world and mind (2024) Jahrbuch der Gesellschaft für germanistische Sprachgeschichte (2024) Research at the intersection of second language acquisition and sociolinguistics: Studies in honor of Kimberly L. Geeslin (2024) Oxford Handbook of the German Language (2023) Double Standards (2023) Expanding Variationist Sociolinguistics: Studies in Linguistic Variation and Change in Varieties of German (2023) Conference Abstracts European Second Language Acquisition (EuroSLA) (2024, 2025) Variation in Language Acquisition 6 (ViLA6) (2024) Organization of Academic Activities Wirtz, M. A., Pfenninger, S. E., Freeborn, L., & Arndt, H. (08 – 09.08.2025). Nightmare on ILM Street: Intensive Longitudinal Methods from a Quantitative and Qualitative Perspective. University of Zurich, Switzerland. Wirtz, M. A., Pickl, S., Niehaus, K., & Elspaß, S. (10.07.2024). Modeling Context and the Individual. International Conference on Language Variation in Europe 12 (ICLaVE 12). Vienna, Austria. Wirtz, M. A., Schmidt-Riese, A. (09.07.2024). Dynamics of Sociolinguistic Development in the First and Second Language. International Conference on Language Variation in Europe 12 (ICLaVE 12). Vienna, Austria. Departmental Administration (University of Salzburg) Institutional Volunteer Work Summer Semester 2023: Outreach between school and university (middle school visit to the University of Salzburg w/ brief Q&A on academic careers; highschool workshop on academic writing, i.e., preparation for the pre-scientific thesis) Summer Semester 2023: Organization of the Lecture Series Innovative Methods in Applied Linguistics 10/2022 – 06/2023: Member of the faculty representatives (FV) (Mitglied der Fakultätsvertretung) 07/2021 – 06/2023: Head of the Doctorate Student Union (StV) (Vorsitzender der Studierendenvertretung Doktorat an der Kultur- und Gesellschaftswissenschaftlichen Fakultät) 02/2018–06/2020: Member of the Student Union, University of Salzburg: Department of English and American Studies; Department of German (Sachbearbeiter, Universität Salzburg: Fachbereich Anglistik und Amerikanistik; Fachbereich Germanistik) Curricularkommissionen / Curricular Committees 10/2022 – 06/2023: Interfakultäres Doktoratsstudium PädagogInnenbildung an der School of Education (Ersatzmitglied / Alternate Member) 01/2022 – 06/2023: Doktoratsstudium an der Gesellschaftswissenschaftlichen Fakultät (Hauptmitglied / Main Member) 01/2022 – 06/2023: Doktoratsstudium an der Kulturwissenschaftlichen Fakultät (Hauptmitglied / Main Member) 11/2021 – 06/2023: Curricularkommission Doktoratsstudium an der KGW-Fakultät (Hauptmitglied / Main Member) 11/2021 – 06/2023: Interuniversitäres Doktoratsstudium Wissenschaft und Kunst (MOZ + PLUS) (Hauptmitglied / Main Member) 09/2019–06/2020: Curricularkommission Bachelorstudium Anglistik und Amerikanistik (Hauptmitglied / Main Member) Promotionskommissionen / Doctorate Committees 10/2022 – 06/2023: Promotionskommission Doktorat an der Gesellschaftswissenschaftlichen Fakultät (Ersatzmitglied / Alternate Member) 03/2022 – 06/2023: Promotionskommission Doktoratsstudium an der KW-Fakultät (Hauptmitglied / Main Member) Membership of Scientific Societies Österreichischer Verband für Deutsch als Fremdsprache/Zweitsprache (ÖDaF) European Second Language Association (EuroSLA) Austrian Association of University Teachers of English (AAUTE)