International Communication Association (ICA)
- Committee Member, Professional Standards Committee (2022-)
- Committee Member, Aubrey Fisher Mentorship Award (2017 – 2021)
- Chair for Children, Adolescents, and Media (CAM) division (2017-2019)
- Vice Chair for CAM division (2015 – 2017)
- CAM Preconference Program Planning Chair (2017)
- CAM Awards Committee Chair (2016, 2017, 2019)
- Member, ICA Community Taskforce (2016 – present)
- Internationalization Liaison for CAM division (2014 – 2015)
- Reviewer (Mass Communication & Children, Adolescents, and the Media (CAM) Divisions)
- Round Table Committee for CAM Division (2009, 2010, 2013)
Board Member
- Center for Open Science, (*registered (nevenwerk) ancillary work), ongoing
- ODISSEI (Open Data Infrastructure for Social Science and Economic Innovations), ongoing
- Wetenschappelijke Raad Netwerk Mediawijsheid, ongoing
- YouTube Kids Advisory Board (*registered (nevenwerk) ancillary work), ongoing
- Center for Scholars & Storytellers, ongoing
- Instituto de Estudios Peruanos, Health Communication Research Group
- SMART? Phone. Consequences of Smartphone Use in Children’s and Adolescents’ Everyday Lives. Funded by the Federal Ministry of Science, Research and Economy under the Program Sparking Science. Awarded to Jörg Matthes and Kathrin Karsay, University of Vienna, 2017 to 2019.
- Vienna Doctoral School of Social Sciences Advisory Board, Chairperson
- Wetenschappelijke Raad Netwerk Mediawijsheid
- YouTube Kids Advisory Board
Journal – Editorial Positions
- Journal of Communication (Associate Editor)
Journal – Board Member
- Annals of the International Communication Association
- Communication Monographs
- Communication Theory
- Human Communication Research
- Journal of Children & Media
- Journal of Broadcasting & Electronic Media
- Mobile Media & Communication
- Media Psychology
Journal Ad-hoc Reviewer
- Child Development
- Communication Methods and Measures
- Communication Research
- Computers in Human Behavior
- Developmental Psychology
- Infant & Child Development
- International Journal of Public Health
- Journal of Adolescence
- Journal of Child & Family Studies
- Journal of Experimental Child Psychology
- Journal of Family Communication
- Journal of Media Psychology
- New Media & Society
- Parenting: Science & Practice
- Pediatrics
- Youth & Society
Research Consultancy
- Consultant, via Center for Scholars & Storytellers, Moonbug Entertainment, June 2024 to present.
- Educational Consultant, Project “Kali and Jabari”, December 2017 to 2019.
- Instituto de Estudios Peruanos, Project “Examining the link between TV and unhealthy eating among children in Peru”, April 2012 to April 2014.
- Cinekid, Project “Evaluating the AppLab Research Lab”, September 2013 to December 2014.
- PBS Kids Sprout, Project “How music familiarity impacts appeal and child engagement,” April 2011 to April 2012.