University of Bonn

schoolSchoolbar_chart#363 Global Rank

Total Papers

HCI Rank

#363

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Years Active

Recent Publications

"The AI tool can’t make it any worse." Investigating Developers’ Security Behavior with AI Assistants in a Password Storage Study

Past research showed that software developers often require explicit instructions to implement security measures. With the rapid rise of AI assistant tools such as ChatGPT, it remains unclear whether AI assistance supports or undermines secure practices, whether explicit security instructions are still essential, and…

CHI '26Human-LLM Collaboration +2

From Answer Engines to Learning Partners: A Dual-ZPD Design Framework for AI-Supported Learning

Generative AI's function as a frictionless "answer engine" creates a paradox in educational HCI: the very tools that can enhance intellect may also weaken it by allowing users to circumvent crucial cognitive processes. This risks creating a "hollowed mind"---knowledge that is broad but superficial, and a user experien…

CHI '25Honorable MentionGender & Race Issues in HCI +1

Women Security Experts Are Not The Enemy: A Qualitative Study on Gender-Related Communication Challenges

Effective communication is crucial for meeting security needs, yet gender-related communication challenges faced by women security experts within software development remain underexplored. In an interview study with 25 women security experts, we investigated gender-related communication challenges hindering the adopti…

CHI '25User Research Methods (Interviews, Surveys, Observation) +2

Small, Medium, Large? A Meta-Study of Effect Sizes at CHI to Aid Interpretation of Effect Sizes and Power Calculation

Statistical reporting, especially of effect sizes, is at the root of many methodological issues in quantitative research at CHI. Effect sizes are necessary for assessing practical relevance of results, a-priori power analysis, and meta-analyses, but currently, they are often not reported. Interpretations in the contex…

CHI '25Best PaperUser Research Methods (Interviews, Surveys, Observation) +1

A Qualitative Study on How Usable Security and HCI Researchers Judge the Size and Importance of Odds Ratio and Cohen's d Effect Sizes

Researchers often place a strong focus on statistical significance when reporting the results of statistical tests. However, effect sizes are reported less frequently, and interpretation in the context of the study and the research field is even rarer. These interpretations of effect sizes are, however, necessary to u…

CHI '25Honorable MentionAlgorithmic Transparency & Auditability +2

Out of Sight, Out of Mind? Exploring Data Protection Practices for Personal Data in Usable Security & Privacy Studies

Adherence to data protection measures such as pseudonymization or anonymization is critical in human subjects research because it has a direct impact on the confidentiality of participants' sensitive information, trust in research practices, and compliance with ethical and legal standards. Regulations such as the Gene…

CHI '25Privacy by Design & User Control +1

"They are responsible for ensuring that I can continue to use the service." Investigating Users' Expectations Towards 2FA Recovery in Germany

Two-factor authentication is often recommended for increasing online security, and users often follow this by using their phones. If physical items become unavailable, there is a risk of losing access to the account due to missing authentication requirements. In such cases, users need a backup or help from the service…

UBICOMP '23Human Pose & Activity Recognition +1

Auto-Gait: Automatic Ataxia Risk Assessment with Computer Vision from Gait Task Videos

Many patients with neurological disorders, such as Ataxia, do not have easy access to neurologists, -especially those living in remote localities and developing/underdeveloped countries. Ataxia is a degenerative disease of the nervous system that surfaces as difficulty with motor control, such as walking imbalance. Pr…

CHI '23User Research Methods (Interviews, Surveys, Observation) +1

Different Researchers, Different Results? Analyzing the Influence of Researcher Experience and Data Type During Qualitative Analysis of an Interview and Survey Study on Security Advice

When conducting qualitative research it is necessary to decide how many researchers should be involved in coding the data: Is one enough or are more coders beneficial? To offer empirical evidence for this question, we designed a series of studies investigating qualitative coding. We replicated and extended a usable s…

CHI '23Honorable MentionPrivacy by Design & User Control +2

Less About Privacy: Revisiting a Survey about the German COVID-19 Contact Tracing App

The release of COVID-19 contact tracing apps was accompanied by a heated public debate with much focus on privacy concerns, e.g., possible government surveillance. Many papers studied people's intended behavior to research potential features and uptake of the apps. Studies in Germany conducted before the app's releas…

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https://hci.top/en/institutions/University%20of%20Bonn?source=all

At a Glance

Institution Snapshot

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University of Bonn

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Location

Germany · Europe

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Overall Rank

#363

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Active Years

2019-2026

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22 researchers · 4 collaborators

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Top Research Directions

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Research Methods & Design Practice

User Research Methods (Interviews, Surveys, Observation)

Privacy, Security & Trust

Passwords & Authentication

AI & Machine Learning Interaction

Explainable AI (XAI)

Ethics, Fairness, Social Justice & Inclusion

Gender & Race Issues in HCI

Health, Healthcare & Wellbeing

Telemedicine & Remote Patient Monitoring