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Klaus Opwis

TrustDiff: Development and Validation of a Semantic Differential for User Trust on the Web
How Web Professionals Perceive Web Accessibility in Practice: Active Roles, Process Phases and Key Disabilities
My Train Talks to Me: Participatory Design of a Mobile App for Travellers with Visual Impairments
The quality of data collected online: An investigation of careless responding in a crowdsourced sample
Salient beliefs influencing the intention to consider Web Accessibility
Measuring the "Why" of Interaction: Development and Validation of the User Motivation Inventory (UMI)
How to Use Plain and Easy-to-Read Language for a Positive User Experience on Websites
A Good Reason to Die: How Avatar Death and High Challenges Enable Positive Experiences
Towards understanding the effects of individual gamification elements on intrinsic motivation and performance
Disassembling gamification: The effects of points and meaning on user motivation and performance
Do points, levels and leaderboards harm intrinsic motivation?: an empirical analysis of common gamification elements

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