의사소통 훈련을 위한 소아치과용 가상현실 시뮬레이션에서 숙련수준이 사용자의 평가에 미치는 영향 = The Effect of Experience Level on User Perception in the VR Based Simulation for Communication Training with Virtual Patient

다국어 초록 (Multilingual Abstract)

The purpose of this study is to develop virtual reality simulation for verbal interaction training and to propose the principles of virtual reality simulation design and development. In this virtual simulation, a virtual child patient was developed in consideration of the effective design factors of virtual patients and the characteristics of actual child patients such as appearance and verbal and non-verbal characteristics. The virtual child patient was designed to make a verbal conversation with the users. The virtual child patient was named as DANVI, which stands for Dental Avatar for Narrative Verbal Interaction. It was to emphasize the verbal function to communicate with the users. DANVI can demonstrate facial expression and various gestures enabling emotional conversation during the clinical review. It consists of 4 steps as greeting → personal information check → opening question → dental observation. For the user evaluation of the developed virtual reality simulation, forty dental students (female=17 and male=23) participated. They enrolled in a graduate studies of dentistries at a public university. The numbers of participants were twenty-eight (70.0%) and twelve (30.0%) for junior and senior respectively. The seniors had a clinical experience so that they had a clinical practice to treat child patients during the practicum for twelve months. The average age was 29.45 (SD=3.15). The independent variable was usefulness, satisfaction, virtual patient presence questionnaires. The results were analyzed with multi-variate analysis of variance. In addition, a focus group interview with four participants was conducted for an in-depth understanding of the survey results. As a result, senior students with pre-clinical experience were significantly more likely to recognize the usefulness and satisfaction of the virtual avatar than junior students with no pre-clinical experience. However, there were no differences in a virtual avatar presence between the two groups. This means that differences in perception on usefulness or satisfaction were not caused by the presence of the virtual patient, but by functional usability and the context of interaction. This study is expected to broaden the horizons of simulation education for verbal interaction.

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