Catálogo de publicaciones - libros

The goal of this study was to develop a mobile-phone based intervention that would encourage parents to engage their children in daily literacy-learning activities. The intervention content included text messages for parents, audio messages for parents and children, and Sesame Street letter videos for children. Messaging to parents suggested real-world activities that they could use to engage their children in learning letters. Pre- and post-interviews indicated a significant increase in the frequency with which parents reported engaging their children in literacy activities after participating in this study. In addition, 75% of lower-income participants and 50% of middle-income participants reported that they believed watching the Sesame Street letter videos helped their children learn letters. More than 75% of participants reported believing that a mobile phone used in this way can be an effective learning tool, since mobile-phone delivery made it extremely easy to incorporate literacy activities into their daily routines.

The unique capabilities of mobile, context-aware, networked devices make them an interesting platform for applying suggestion in persuasive technologies. Because these devices are nearly always with their owners, can sense relevant information about the context of their use, and nearly always have network access, they enable the principle of , providing the right information at the best time. Relatively little work has examined providing opportunistic, right-time, right-place suggestions or notifications that encourage people to change their behavior. This paper first discusses some of the challenges facing designers incorporating suggestions into their persuasive technologies. We then review a set of relevant persuasive technologies, focusing primarily on technologies in the health domain. We then identify a design space that represents tactics for building persuasive technologies, particularly suggestion technologies. We then explore how this design space of suggestion tactics can be used to evaluate, compare, and inform the design of new persuasive technologies.

Social psychology shows that the effect of a persuasive argument depends on characteristics of the person to be persuaded, including the person’s involvement with the topic and the discrepancy between the person’s current position on the topic and the argument’s position. Via a series of experiments, this paper provides insight into how the receiver’s position can be modelled computationally, as a function of the strength, feature importance, and position of arguments in a set.

Recommender technologies are crucial for the effective support of customers in online sales situations. The state-of-the-art research in recommender systems is not aware of existing theories in the areas of cognitive and decision psychology and thus lacks of deeper understanding of online buying situations. In this paper we present results from user studies related to serial position effects in human memory in the context of knowledge-based recommender applications. We discuss serial position effects on the recall of product descriptions as well as on the probability of product selection. Serial position effects such as primacy and recency are major building blocks of persuasive, next generation knowledge-based recommender systems.

Persuasive interfaces in a class of interfaces belonging to a trend in contemporary HCI where user experiences matter more than for instance user performance. In this paper, we argue that in this shift there is also a shift in accountability, but that this shift tends to remain implicit in HCI. What makes a good user experience? To deal with these issues, we argue that HCI needs to develop a philosophy of technology. Two candidate accounts of contemporary philosophies of technology are introduced and discussed. First, Don Ihde develops a phenomenology of relations between human users, artifacts, and the world and technologies are seen as inherently non-neutral. Second, Albert Borgmann argues that we need to be cautious and rethink both the relationship as well as the often assumed correspondence between what we consider as useful and what we think of as good in terms of technology.

Classical rhetoric was the first discipline concerned with persuasion and in fact still has a lot to offer. This is exemplified by a short discussion of the persuasive appeals known from classical rhetoric as well as the so-called ‘-model’. It is suggested how these sets of rhetorical concepts may be developed into guidelines for persuasive design. Moreover, classical rhetoric can be related to social psychology in an interesting and informative way. This combination of classical and modern disciplines of persuasion however also suggests that there is an inherent limit to the power of persuasive strategies.

A growing number of information technology systems and services are being developed for persuasive purposes, i.e. to change users’ attitudes or behaviour or both. This paper proposes a taxonomy of general persuasive approaches, with interpersonal, computer-mediated and human-computer persuasion as the key types. It also recognizes and briefly describes related theories from social psychology, namely information processing theory, cognitive consistency theory, the elaboration likelihood model and Cialdini’s influence techniques.