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Setting up and conducting user studies is fundamental to virtual reality research. Yet, often these studies are developed from scratch, which is time-consuming and especially hard and error-prone for novice developers. In this paper, we introduce the StudyFramework, a framework specifically designed to streamline the setup and execution of factorial-design VR-based user studies within the Unreal Engine, significantly enhancing the overall process. We elucidate core concepts such as setup, randomization, the experimenter view, and logging. After utilizing our framework to set up and conduct their respective studies, 11 study developers provided valuable feedback through a structured questionnaire. This feedback, which was generally positive, highlighting its simplicity and usability, is discussed in detail.
Ehret et al. (Sat,) studied this question.