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Gnambs T.,University of Osnabruck | Appel M.,University of Koblenz-Landau | Oeberst A.,Leibniz Institute For Wissensmedien
PLoS ONE | Year: 2015

In many situations red is associated with hazard and danger. As a consequence, it was expected that task-irrelevant color cues in online environments would affect risk-Taking behaviors. This assumption was tested in two web-based experiments. The first study (N = 383) demonstrated that in risky choice dilemmas respondents preferred the less risky option when the displayed university logo was in red (versus gray); but only when both choice alternatives were at least moderately risky. The second study (N = 144) replicated these results with a behavioral outcome: Respondents showed more cautious behavior in a web-based game when the focal stimuli were colored red (versus blue). Together, these findings demonstrate that variations in the color design of a computerized environment affect risk taking: Red color leads to more conservative choices and behaviors. © 2015 Gnambs et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Source

Oeberst A.,Leibniz Institute For Wissensmedien | Moskaliuk J.,University of Tubingen
Educational Technology and Society | Year: 2016

This paper examines whether conversational norms that have been observed for face-to-face communication also hold in the context of a specific type of computer-mediated communication: collaboration (such as in Wikipedia). Specifically, we tested adherence to Grice's (1975) maxim of relation-the implicit demand to contribute information that is relevant (only) for the purpose of the communication. In two experiments about a historical event, we manipulated the relevance of information provided as well as the context of the collaboration (i.e., encyclopedia article vs. contemporary witness compendium). In line with Grice's maxim, participants indeed reliably preferred information that was relevant for the specific context (e.g., information of general relevance to a broader audience in the encyclopedia context). Source

Wessel D.,Leibniz Institute For Wissensmedien
International Journal of Interactive Mobile Technologies | Year: 2015

Direct behavior observation, i.e., without first creating a video recording, is a challenging, one-shot task. The behavior has to be coded accurately during the situation itself. Mobile devices can assist direct observation, and there already are applications available for these purposes. However, the mobile revolution has led to new developments in devices, infrastructure, and market penetration that have opened up new, yet untapped, possibilities. In this article, expanded activity theory is used to highlight the unused potential of computer assisted direct observation (CADO) apps. If this potential is realized, it can provide observation with the same advantages online questionnaires and sites like Mechanical Turk have provided for surveys and Internet experiments. Source

Oeberst A.,Leibniz Institute For Wissensmedien
Berichte zur Deutschen Landeskunde | Year: 2012

What do we know? And how do we know? Unlike most scientific inquiries the contribution of Steinbrink et al. focuses on the scientific System itself - or a subsection of it. The present comment focuses on two main points: On the one hand it discusses various aspects that limit the range of conclusions that may be drawn from the network analyses presented by Steinbrink et al. (e.g., non-normativity of the analysis; limitation to successful scientists). On the other hand it elaborates on theoretically derived conditions that are beneficial for the common goal of knowledge construction (e.g., diversity among scientists; public debate) and contrasts them with current practice (e.g., conservatism in the peer review process). Source

Levordashka A.,Leibniz Institute For Wissensmedien | Utz S.,Leibniz Institute For Wissensmedien | Utz S.,University of Tubingen
Computers in Human Behavior | Year: 2016

Ambient awareness refers to the awareness social media users develop of their online network in result of being constantly exposed to social information, such as microblogging updates. Although each individual bit of information can seem like random noise, their incessant reception can amass to a coherent representation of social others. Despite its growing popularity and important implications for social media research, ambient awareness on public social media has not been studied empirically. We provide evidence for the occurrence of ambient awareness and examine key questions related to its content and functions. A diverse sample of participants reported experiencing awareness, both as a general feeling towards their network as a whole, and as knowledge of individual members of the network, whom they had not met in real life. Our results indicate that ambient awareness can develop peripherally, from fragmented information and in the relative absence of extensive one-to-one communication. We report the effects of demographics, media use, and network variables and discuss the implications of ambient awareness for relational and informational processes online. © 2016 The Authors. Published by Elsevier Ltd. Source

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