Improved Memory Elicitation in Virtual Reality: New Experimental Results and Insights

Eliciting accurate and complete knowledge from individuals is a non-trivial challenge. In this paper, we present the evaluation of a virtual-world based approach, informed by situated cognition theory, which aims to assist with knowledge elicitation. In this approach, we place users into 3D virtual worlds which represent real-world locations and ask users to describe information related to tasks completed in those locations. Through an empirical A/B evaluation of 62 users, we explore the differences in recall ability and behaviour of those viewing the virtual world via a virtual reality headset and those viewing the virtual world on a monitor. Previous results suggest that the use of a virtual reality headset was able to meaningfully improve memory recall ability within the given scenario. In this study, we adjust experiment protocol to explore the potential confounds of time taken and tool usability. After controlling for these possible confounds, we once again found that those given a virtual reality headset were able to recall more information about the given task than those viewing the virtual world on a monitor.

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