Together with a research group from Mälardalen University’s department of Health, Care and Social Welfare, a prototype for an iPad app was created that aims to solves some of the current issues in healthcare for toddlers. The prototype would then be used by the research group to test with toddlers and examine whether the toddlers’ knowledge of basic medical treatments was increased. Due to varying linguistic backgrounds and abilities, the iPad had to be completely free of words, communicating only through sounds, images and animation. In this study, a research question was developed: What design aspects of illustrations and animations make them identifiable and ensure basic usability in an interactive iPad app that does not contain any written or spoken words for children between the ages 3 and 5? In order to find the answers to this question, an expert review was conducted, relevant design principles were studied to learn more about usability guidelines and animation for children, a prototype was created and iterative participatory tests were conducted with children of the same age as the target audience. These methods showed that there is a lack of usability guidelines when it comes to designing usability for a young audience. However, the usage of an expert review method prior to creating an app proved to be an effective way to see different design strategies in action and evaluate them. The participatory tests indicated that the usage of two different gestures is challenging for young children, and that instructions for these two gestures have to be different from one another.

ABSTRACT Finding ways to improve nutritional and physical activity components with today's adolescents is a significant problem. The obesity epidemic is over 10 years old and little research has been done on successful interventions that motivate today's students using the latest technology. A total of 140 middle school students and four physical education teachers participated in a 4-week study using a newly created application (AFIT app) for supplemental teaching in and out of the classroom. Combining a theoretical framework of Self-Determination and motivating strategies implored in today's mobile technology, significance was found using the PACE (2001) instrument in fruits and vegetable and physical activity psychosocial behaviors. The pretest to posttest for fruits and vegetables revealed a decrease in confidence for behaviors that support meeting recommended daily requirements in eating fruits and vegetables. The pretest to posttest for physical activity highlighted an increase in supporting behaviors for meeting the daily physical activity requirements, and an increase in friend support for meeting those daily physical activity requirements. Intrinsic and extrinsic motivators were incorporated in the app design and the tenets of autonomy, competence, and relatedness were used as adolescent motivators. At the end of the 4-week study, benefits and obstacles were also noted for both teachers and students with recommendations to increase teachers' in-services with regard to the latest technology and troubleshooting procedures. A home survey highlighted the need for more adult education in the household and stressed the importance of family support in both fruits and vegetables and physical activity behaviors.

This dissertation investigates meaning-making in children's joint-reading transactions with literary apps. The analysis of meaning-making focuses on embodiment as a central aspect of literary app's texts and their reading and on children's negotiation of agency in the act of joint-reading. Meaning-making is understood through a multimodal social semiotics perspective, which considers that meaning is realised in the dynamic transaction between reader, text and social context. Therefore, the dissertation integrates the analysis of the apps and of the children's responses to capture the dynamics of meaning-making in such transactions. Case studies were conducted with six families, who read the apps The Monster at the End of This Book (Stone & Smollin, 2011) and Little Red Riding Hood (Nosy Crow, 2013) in an English public library. The central method of data collection involved video-recorded observations of parent-child joint-reading events, complemented by graphic elicitation, informal interviews and a questionnaire. The video data was analysed through multimodal methods. The findings indicate that the participant readers used their bodies not only as a material point of contact and activation of the interactive features but also as a resource for meaning-making in their transactions with the apps. The reader's body was essential in their engagement with the material and interactive affordances of the apps, in reader's expressions of their responses, and in the sharing of the reading experience with the parents. The body of the reader, through spontaneous and interactive gestures, is a mode of communication in the multimodal ecologies of both the text and the reader's responses. Furthermore, the child readers constantly negotiated their agency within the constraints posed by the text, which include the narrative itself and its interactive features, and those posed by the joint-reading situation. The bodies of the readers played an essential role in this dual negotiation of agency. Children's agency was scripted, that is, the readers exerted their agency within the limitations of a script. The script, however, allowed readers to improvise, and their performances also involved resistance to the script through playful subversion. In the joint-reading event, children's agency was foregrounded, positioning the children as protagonist readers, who performed most of the interactions and lived the aesthetic experience of the text fully, to the expense of their parents, who mostly participated as supporting readers, transferring their agency to the children through scaffolding.