On site: to opt-in or opt-out?: it depends on the question
Communications of the ACM
Internet opt-in and opt-out: investigating the roles of frames, defaults and privacy concerns
Proceedings of the 2006 ACM SIGMIS CPR conference on computer personnel research: Forty four years of computer personnel research: achievements, challenges & the future
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Information Technologies and International Development
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ACM SIGWEB Newsletter
From sensing to controlling: the state of the art in ubiquitous crowdsourcing
International Journal of Communication Networks and Distributed Systems
A framework for community-oriented mobile interaction design in emerging regions
HCI'13 Proceedings of the 15th international conference on Human-Computer Interaction: users and contexts of use - Volume Part III
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Uganda suffers from a severe shortage of professional healthcare workers. Thus, programs aimed at prevention of disease are an important complement to the limited healthcare delivery system. We analyze two deployments of an SMS-based HIV/AIDS education system that uses a quiz format to assess people's knowledge of the disease, including its causes and methods of prevention. The deployments were to two groups in Uganda, one a sample of mobile phone users who live in a town in northwest Uganda; the other, workers at three factories in central and southeastern Uganda. The two samples had accuracy rates above chance levels and workers at the three factories had higher rates of participation (more individuals and more questions) than the sample selected from the cell tower service area. An analysis of incorrect answers suggested that while participants had some difficulty in matching the formatting required by the quiz, literacy did not appear to be a significant problem. We discuss the results in terms of implications for using SMS as a user interface mechanism and explore the possibility of using social ties among participants as a way to promote the scalability and sustainability of this quiz-based education method.