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In this paper, we present the findings from a field study that quantifies the different engagement phases of an interactive public display: from noticing interactivity and the first reaction to it, to actually interacting with the screen and expressing interest in a campaign. For this purpose, we developed an interactive public display for a real-life campaign that aims to increase awareness on cardiac arrests and Cardio-Pulmonary Resuscitation (CPR). In our study, we deployed two public displays with interactive prototypes in the biggest railway station of Brussels (Belgium), which resulted in 10,000+ passers-by and more than 1,000 reactions. We conclude that although interactive displays are effective at capturing attention and do provide a high conversion rate from passers-by to users interacting, this does not directly translate into achieving the goal of the display for the campaign as only 0,10% of them reach the final stage (visiting a website).

Abstract. This paper reports on our ongoing research around learning analytics. We focus on how learning analytics can be used to increase student motivation and the use of badges as a way to aggregate learning activity being a representation of their goals and progress along the course. The context of this work is an open learning environment, based on wikis, blogs, twitter, an activity stream mash-up and an open badges system. Our evaluation analyses perceived usefulness and usability of the system, as well as the impact on student motivation. Our results indicate that badges are useful to motivate students while activity streams have the potential to activate students.

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