- Educational Games and Gamification
- Innovative Human-Technology Interaction
- Impact of Technology on Adolescents
- Flow Experience in Various Fields
- Mind wandering and attention
- Motivation and Self-Concept in Sports
- Behavioral Health and Interventions
- Maternal Mental Health During Pregnancy and Postpartum
- Data Quality and Management
- Usability and User Interface Design
- Persona Design and Applications
- Breastfeeding Practices and Influences
- COVID-19 Impact on Reproduction
- Technology Adoption and User Behaviour
- Olfactory and Sensory Function Studies
- Explainable Artificial Intelligence (XAI)
- Big Data and Business Intelligence
- Color perception and design
- Technology Use by Older Adults
- Technostress in Professional Settings
- Access Control and Trust
- Personal Information Management and User Behavior
University of St. Gallen
2025
Human Computer Interaction (Switzerland)
2024
University of Basel
2020-2024
Schweizerische Ärztegesellschaft für Psycholytische Therapie
2020
User experience (UX) research relies heavily on survey scales to measure users' subjective experiences with technology. However, repeatedly raised concerns regarding the improper use of in UX and adjacent fields call for a systematic review current measurement practices. Therefore, we conducted literature review, screening 153 papers from four years ACM Conference Human Factors Computing Systems proceedings (ACM CHI 2019 2022), which 60 were eligible empirical studies using study...
the design of everyday digital experiences.The research has transformed user interfaces, making technology more accessible and intuitive for a global audience.One many examples is development "direct manipulation" interface concept identified named by Ben Shneiderman in early 1980s [1].This concept, which emphasizes importance graphical interfaces that allow users to interact directly with on-screen objects (e.g., dragging dropping files), significantly influenced modern operating systems,...
Trust is often cited as an essential criterion for the effective use and real-world deployment of AI. Researchers argue that AI should be more transparent to increase trust, making transparency one main goals XAI. Nevertheless, empirical research on this topic inconclusive regarding effect trust. An explanation ambiguity could trust operationalized differently within In position paper, we advocate a clear distinction between behavioral (objective) measures reliance attitudinal (subjective)...
Despite its importance, few validated scales exist to measure aesthetics in HCI. One notable exception, the Visual Aesthetics of Websites Inventory (VisAWI), has never been English. Furthermore, VisAWI contains negatively formulated items, which adversely impact psychometric quality survey scales. Consequently, this paper's aim was development a positive-item version VisAWI, VisAWI-pos, as viable alternative original scale. Positive alternatives for negative items scale were developed and...
Measuring the subjective experience of digital game players is essential to player research. Recently, Player Experience Inventory (PXI) was developed, which assesses both functional and psychosocial consequences gameplay. We present a pre-registered independent online study with large sample provide additional evidence psychometric quality for PXI. Responses from 1518 participants were collected, rating recent or memorable playing using PXI related measures. While our results standard...
Measuring the subjective experience of digital game players is essential to player research. Recently, Player Experience Inventory (PXI) was developed, which assesses both functional and psychosocial consequences gameplay. We present a pre-registered independent online study with large sample provide additional evidence psychometric quality for PXI. Responses from 1518 participants were collected, rating recent or memorable playing using PXI related measures. While our results standard...
Despite the importance of trust in human-AI interactions, researchers must adopt questionnaires from other disciplines that lack validation AI context. Motivated by need for reliable and valid measures, we investigated psychometric quality two questionnaires, Trust between People Automation scale (TPA) Jian et al. (2000) Scale Context (TAI) Hoffman (2023). In a pre-registered online experiment (N = 1485), participants observed interactions with trustworthy untrustworthy (autonomous vehicle...
Despite its popularity, knowledge of the psychometric quality System Usability Scale (SUS) in German is limited. This paper addresses this by developing a positively worded SUS version and investigating two existing versions. In preregistered first study, initial positive alternatives for negative items were evaluated, versions compared. Based on these results, second study validated new positive-only independently original Results indicated that SUS-DE-Pos, based Rummel (2016), performed...
Despite its popularity, knowledge of the System Usability Scale's (SUS) psychometric quality in German is limited. This article developed a positively worded SUS version and investigated two existing versions. In preregistered first study (N = 250), positive alternatives for negative items were evaluated using item analyses, exploratory factor language expert suggestions. The versions also compared. A second 877) involved participants interacting with 12 websites completing different to...
Flow is a highly influential concept across many research domains. Because of the close links between enjoyment and flow, it also central in game research. Accordingly, measurement instruments form questionnaires have been developed to measure flow video games. However, limited independent validation work has carried out date. In this project, we evaluated recently Video Game Dispositional Scale (VGDFS) context League Legends. An online survey posted on community reddit.com yielded sample N...
User experience research relies heavily on survey scales to measure users' subjective experiences with technology. However, repeatedly raised concerns regarding the improper use of in UX and adjacent fields call for a systematic review current measurement practices. Therefore, we conducted literature review, screening 153 papers from four years ACM Conference Human Factors Computing Systems proceedings, which 60 were eligible empirical studies using study experiences. We identified 85...
Flow is a highly influential concept across many research domains.Because of the close links between enjoyment and flow, it also acentral in game research. Accordingly, measurementinstruments form questionnaires have been developedto measure flow video games. However, limited independentvalidation work has carried out to date. In this project, weevaluated recently developed Video Game Dispositional FlowScale (VGDFS) context League Legends. An online survey posted on community reddit.com...