Linxen, Sebastian
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Gamification of electronic learning in radiology education to improve diagnostic confidence and reduce error rates
OBJECTIVE. The purpose of this study is to validate an electronic learning, or e-learning, concept featuring gamification elements, rapid case reading, and instant feedback. SUBJECTS AND METHODS. An e-learning concept was devised that offered game levels for the purpose of providing training in the detection of pneumothorax in 195 cases, with questions read in rapid succession and instant feedback provided for each case. The user's task was to locate the pneumothorax on chest radiographs and indicate its presence by clicking a mouse. The game level design included an entry test consisting of 15 cases, training levels with increasing difficulty that involved 150 cases, and a final test that including 30 cases (the 15 cases from the entry test plus 15 new cases). A total of 126 candidates were invited via e-mail to participate and were asked to complete a survey before and after playing the game, which is known as RapRad. The level of diagnostic confidence and the error rate before and after playing the game were compared using a Wilcoxon signed rank test. RESULTS. Fifty-nine of 126 participants (47%) responded to the first survey and finished the game. Of these 59 participants, 29 (49%) responded to the second survey after completing the game. Diagnostic confidence in pneumothorax detection improved significantly, from a mean (± SD) score of 4.3 ± 2.1 on the entry test to a final score of 7.3 ± 2.1 (p < 0.01) after playing RapRad, with the score measured on a 10-point scale, with 10 denoting the highest possible score. Of the participants, 93% indicated that they would use the game for learning purposes again, and 87% indicated that they had fun using RapRad (7% had a neutral response and 6% had a negative response). The error rate (i.e., the number of failed attempts to answer a question correctly) significantly decreased from 39% for the entry test to 22% for the final test (p < 0.01). CONCLUSION. Our e-learning concept is capable of improving diagnostic confidence, reducing error rates in training pneumothorax detection, and offering fun in interaction with the platform.
Tourney: A game-based learning approach for the recognition of uncommon pathologies in Radiology
RapRad - A New E-learning Concept with Rapid Case Reading and Instant Feedback to Reduce Chance in Radiology Education
How WEIRD is HCI?: Extending HCI Principles to Other Countries and Cultures
A large majority of articles published at prominent HCI venues such as CHI and CSCW reports on studies with WEIRD (Western, Educated, Industrialized, Rich, and Democratic) participants, ignoring that the results might not apply to other subject populations. This workshop aims to have the following two main outcomes: (1) A list of major principles that HCI researchers often build on and that are unlikely to apply to users in other countries and cultures. (2) An action plan that describes how we can extend these previous findings, such as by collaborating across countries and cultures, conducting large-scale online experiments, or creating a culture of replications and extensions with more diverse subject populations. Furthermore, the workshop aims to establish an interest group with the goal to improve the external validity of HCI research and to inform the design of further research studies in this area.
Mobile and ubiquitous knowledge management: lessons from the transportation sector
Is It Still Where I Expect It?—Users’ Current Expectations of Interface Elements on the Most Frequent Types of Websites
Knowing users’ expectations about what they expect on a website and where they expect to find it is crucial for the success of a website. For the last decade, technological advances have entailed major changes in website design but the impact of these changes on users’ mental representations of websites remains unclear. In an online study (N = 841), we asked users to sketch their prototypical version of an online shop, a news website and a company page, thereby indicating the interface elements they expect on the website and their expected location. We compared our results to those of a previous study to investigate changes in users’ mental representations of websites over time. This comparison suggests that interface elements such as the logo, main content and navigation area are still expected in the same location although others have shifted to the rich footer area at the bottom of the website. In addition, new elements such as links to social networks have been incorporated into users’ mental representations whereas other interface elements have disappeared. By providing updated consolidated blueprint models for all three website types, we help designers to create expectation-based websites. Further implications for research and practitioners are discussed.