👉 Participant engineering refers to the process of designing and optimizing the interactions between human participants and the systems, tools, or environments they engage with during research studies. This involves tailoring the user experience to enhance participant engagement, understanding, and data quality by considering factors such as interface design, feedback mechanisms, and the overall context in which participants operate. By incorporating insights from human-computer interaction, cognitive psychology, and user experience design, participant engineering aims to create more intuitive, effective, and enjoyable experiences that yield richer and more reliable research outcomes.