The effects of animated characters on anxiety, task performance, and evaluations of user interfaces
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
The effects of spatial and temporal video distortion on lie detection performance
CHI '02 Extended Abstracts on Human Factors in Computing Systems
An empirical study on the trustworthiness of life-like interface agents
Proceedings of the HCI International '99 (the 8th International Conference on Human-Computer Interaction) on Human-Computer Interaction: Communication, Cooperation, and Application Design-Volume 2 - Volume 2
On-line trust: concepts, evolving themes, a model
International Journal of Human-Computer Studies - Special issue: Trust and technology
Deception and design: the impact of communication technology on lying behavior
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Trust in social Q&A: the impact of text and photo cues of expertise
Proceedings of the 73rd ASIS&T Annual Meeting on Navigating Streams in an Information Ecosystem - Volume 47
Exploring the impact of trust information visualization on mobile application usage
Personal and Ubiquitous Computing
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Enabling users to identify trustworthy actors is a key design concern in online systems and expertise is a core dimension of trustworthiness. In this paper, we investigate (1) users' ability to identify expertise in advice and (2) effects of media bias in different representations. In a laboratory study, we presented 160 participants with two advisors -- one represented by text-only; the other represented by one of four alternate formats: video, audio, avatar, or photo+text. Unknown to the participants, one was an expert (i.e. trained) and the other was a non-expert (i.e. untrained). We observed participants' advice seeking behavior under financial risk as an indicator of their trust in the advisor. For all rich media representations, participants were able to identify the expert, but we also found a tendency for seeking video and audio advice, irrespective of expertise. Avatar advice, in contrast, was rarely sought, but -- like the other rich media representations -- was seen as more enjoyable and friendly than text-only advice. In a future step we plan to analyze our data for effects on advice uptake.