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Usability assessment of mobile applications used for training surgical skills: The effect of domain expertise on user satisfaction

Kowalski, Melina Marie (2020) Usability assessment of mobile applications used for training surgical skills: The effect of domain expertise on user satisfaction.

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Abstract:Introduction: With the common use of minimally invasive surgery, traditional training approaches such as the master-apprenticeship model cannot fully account for the new skills needed (Darzi & Munz, 2004). Technical tools may train psychomotor skills without the risks of real life surgery (Darzi & Munz, 2004). Although professional simulators may have a higher accessibility and resemblance to real life surgery, they are costly. Therefore, employing simulations in smartphone applications could be a more cost-efficient alternative (Darzi & Munz, 2004). Objectives: Systems should fulfil the criteria of effectiveness, efficiency and satisfaction (Borsci, Federici & Lauriola, 2009). To measure if domain expertise influences the satisfaction criterion the research question “How does the level of expertise affect the user satisfaction of a skill training application (SimuSurg) compared to a knowledge based application (Touch Surgery)” was asked. Methods: The System Usability Score, the Net Promoter Score and an additional question concerning application preference were used to measure user satisfaction. All participants tested both applications. To measure the usability of the applications, tasks had to be completed remotely. To analyse the data regression analyses were run to determine the predictive value of domain expertise on user satisfaction. Results: The results of the regression analyses showed that there is no significant effect of domain expertise on user satisfaction. Touch Surgery scores were higher on both, the SUS scores and NPS scores. However, SimuSurg was preferred over Touch Surgery by intermediates and experts. Therefore, Touch Surgery was rated as more usable, while SimuSurg scored higher on preference ratings. Conclusion: Domain expertise had no significant effect on user satisfaction when comparing SimuSurg to Touch Surgery within this dataset. SimuSurg was preferred over Touch Surgery although the SUS and NPS scores indicated a higher usability for Touch Surgery. Comments by experts indicated that SimuSurg could be more valuable for teaching than Touch Surgery if the application would be improved, which could explain preference and usability discrepancies.
Item Type:Essay (Bachelor)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology BSc (56604)
Link to this item:http://purl.utwente.nl/essays/82850
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