David is a professor at the Faculty of Social Studies and the Faculty of Informatics at Masaryk University and the head of our research package. He has long been engaged in research on children in the context of the opportunities and risks of internet use. He is the co-author of the influential book Digital Youth: The Role of Media in Development, which has been translated into Chinese and Korean. In addition, he is the lead author of the report EU Kids Online 2020: Survey Results from 19 Countries, which maps children’s internet use across 19 European countries. When he is not developing new research projects, he enjoys spending time with his daughter Rebeka or being active—his passions include running, cycling, and cross-country skiing.

Martin is a professor of sociology at the Faculty of Social Studies. His specialization lies in demography and theories of survey response behavior. In our project, he focuses on methodological issues related to questionnaire completion.

Martin focuses on the application of psychology in the workplace. He has long been studying factors that influence work performance. For example, he is the author of a competency model that helps identify good leaders before they actually become ones. The outcome of his project on the sources of psychological capital includes identifying the importance of the quality of relationships with parents and peers during adolescence for the development of psychological capital in adulthood. He is also the co-author of the CPC12-R psychological capital measurement method. Within the EMA team, he focuses on the effects of ICT use after working hours on recovery processes.

Martin enjoys polar expeditions (at –25°C or colder), climbing fairly high mountains (over 5,000 meters), and adventurous road trips across various parts of the world. He also does quite a bit of uphill running.

Mariek Vanden Abeele is an Associate Professor of Digital Culture at the Faculty of Political and Social Sciences at Ghent University. In her research, Mariek focuses on digital culture, combining psychological and sociological perspectives on media to better understand the role that digital media use plays in everyday life. Her interests include mobile media use and its problematic forms, its impact on relationships, digital well-being, and the social implications of wearable technologies. Mariek is an active member of the Mobile Communication Interest Group within the International Communication Association (ICA). She is also the Principal Investigator of an ERC 2020 Starting Grant on Digital Well-being. In her project, Mariek draws on her interdisciplinary background to explore individuals’ relationship to being connected anytime and anywhere, using both computational and ethnographic research approaches.

Ine Beyens is an Assistant Professor at the Amsterdam School of Communication Research (ASCoR) at the University of Amsterdam. Her research focuses on the effects of screen media on the emotional, psychological, and social well-being of children and adolescents. Ine is a founding member of the AWeSome project, an interdisciplinary initiative that investigates the impact of social media use on various aspects of adolescent well-being.

Tomáš holds a PhD in Work Psychology from the Faculty of Social Studies at Masaryk University and works in our team as a postdoctoral researcher. His research focuses on the impact of modern technologies on employees’ health and performance, as well as on potential interventions in these areas. He is also trained in psychotherapy and has his own practice, which allows him to bridge psychological research and its practical applications. In his free time, he enjoys reading and writing fiction, swimming, playing games, and organizing fan events dedicated to various popular works.

Michaela holds a PhD in Media Studies and works in our team as a researcher focusing on media effects. She has long been studying the impact of sexually explicit content and sexting on well-being. Within our EMA team, she concentrates primarily on digital well-being and contributes a social science perspective to collaborations with colleagues in the field of machine learning. She is also one of our EMA design experts—she spent three months on a research stay with the AWeSome team at the University of Amsterdam, one of the leading pioneers of EMA design in media and technology studies. She has also lectured on the applications of EMA design, for example at Ghent University in Belgium. In her spare time, she is affectionately devoted to Karel, a robot from the Laboratory of Natural Language Processing, whom she hopes to adopt one day.

Martin is an Assistant Professor specializing in process-oriented techniques. His work focuses on process mining methods and the visualization of process models. His research has covered areas such as cybersecurity, education, and software engineering. Within our EMA team, he brings a process-oriented perspective to the study of well-being, analyzing event logs generated through the use of digital technologies.Martin also enjoys collaborating with companies on research projects where academic findings can be directly applied in practice. He is currently leading a research collaboration between the university and SAP. In his free time, he enjoys teaching courses at the Faculty of Informatics.

Jaromír is an Assistant Professor at the Faculty of Informatics at Masaryk University and a senior member of the informatics division of our team. The research side of his pragmatic nature focuses primarily on modeling and simulation, machine learning, and assistive technologies that support people with disabilities. In a previous EXPRO project, he led the development of an application enabling data collection from adolescents’ mobile phones and is currently conducting experiments with the collected data using machine learning methods. As part of his teaching activities, he lectures on topics related to programming, algorithm design, and social informatics. In his free time, he enjoys spending time with his children, playing board games, and doing sports especially those that involve a ball of any size.

Dr. Michał Tkaczyk is a postdoctoral researcher specializing in communication studies. Within the project, his main focus is on the effects of communication technology use on the sleep of adults and adolescents. Among the additional topics he enjoys working on are the impact of ICT on well-being and the challenges of measuring ICT use time through surveys.In the past, he contributed to the successful FUTURE project, which aimed to better understand the influence of technology on adolescents’ well-being.

Ondřej is a PhD student at the Faculty of Informatics, Masaryk University, and serves in our research team as both a researcher and programmer. He focuses on the design of technologies used within the team for data collection and processing. During his master’s studies, he worked on data anonymization, and his doctoral research explores the application of machine learning and artificial intelligence to human–computer interaction. For more details on his professional background, see his LinkedIn profile. In his free time, Ondřej enjoys spending time with his two children.

Jaroslav is a PhD student in Work Psychology at the Faculty of Social Studies, Masaryk University. His doctoral project builds on his master’s thesis, which focused on recovery and the use of technology for work outside regular working hours. He examines the factors that facilitate recovery. Jaroslav also works as a career counselor at the Masaryk University Career Centre and as an occupational psychologist, coach, and trainer for various organizations. He enjoys espresso, Italian cuisine, gardening, and music.

Martin Tancoš is a PhD student in Psychology at the Faculty of Social Studies, Masaryk University. His research focuses on the analysis of intensive longitudinal data and objective smartphone use data, employing linear multilevel modeling and structural equation modeling. He also works on developing methods for using reaction time in performance testing. In addition, he is interested in political psychology, the development of cognitive tests, and response processes in questionnaires.

Tom is a PhD student in Work Psychology at the Faculty of Social Studies, Masaryk University. As a junior researcher, he assists with the preparation of materials for data collection and communication with research participants. His doctoral research focuses on the long-term relationships between the use of communication technologies and recovery from work. In his free time, he is active in faculty and university governance, enjoys bouldering, and plays board games.

Mgr. Jana Blahošová is a former PhD student in Media Studies and Journalism at the Faculty of Social Studies, Masaryk University. In her dissertation, she focuses on excessive internet use among adolescents and its relationships with selected family environment factors, such as the quality of parent–child relationships and parental mediation of media use. Her other research interests include behavioral addictions, particularly technology-related and online addictive behaviors among young people. She also works as an assistant editor for the academic journal Cyberpsychology: Journal of Psychosocial Research on Cyberspace. In her free time, she enjoys baking, writing, and practicing yoga, and if she could, she would happily make a living as a professional food taster.

Steri is a researcher at the Faculty of Informatics, Masaryk University. Her current research focuses on mobile technologies for improving behavioral health and active aging in the Czech Republic. Within her work, she is interested in health behaviors and their psychological impacts across different populations. Steri is the author of numerous publications in international journals and spent 16 years in the United States, where she earned her PhD (University of Illinois at Urbana-Champaign) and worked as an academic (Penn State University, University Park). She is also affiliated with the University of Ostrava, and her broader research interests include health psychology, physical activity, subjective well-being and quality of life, adult development and aging, women’s health, and mind–body therapies such as yoga. In her free time, Steri enjoys gardening, exercising, reading science fiction, and playing outdoors with her children.

Aleš Horák has been working for over 20 years as a researcher in the field of artificial intelligence and language technologies, and since 2014 he has served as the Head of the Department of Machine Learning and Data Processingat the Faculty of Informatics, Masaryk University. His research focuses on semantic analysis, information extraction from text, automatic text style recognition, and the design of specialized systems for building ontologies, lexicographic databases, and electronic dictionaries.He is a co-author of systems used in research and security projects across dozens of institutions worldwide.

Pavel is a lawyer working at the Faculty of Informatics, Masaryk University. He is part of a centre of excellencefocused on issues related to cybercrime, cybersecurity, and the protection of critical information infrastructures. He also serves as a researcher and lecturer at the Institute of Law and Technology at the Faculty of Law, Masaryk University. Within the project, he oversees the legal aspects to ensure that all procedures comply with regulations and protect not only the research participants but also the researchers themselves. In his free time, he enjoys walking with his wife and dog and plays in a gothic rock band.

Michal worked at the Faculty of Informatics, Masaryk University, and served as our programmer responsible for technical solutions. Together with Jaromír and Ondřej, he developed the mobile application used for data collection. Among his main responsibilities was ensuring that the application could do everything the rest of the team envisioned while remaining secure and user-friendly for research participants. His current interests include Android and wearable device development, as well as emerging technologies such as artificial intelligence. Michal also enjoys growing chili peppers and testing how much spicy food he can handle.