A research area that focuses on exploring the relationships between various factors, variables, or concepts. This type of research often involves analyzing the connections and interactions between different elements to better understand how they influence each other. Researchers in this area aim to uncover patterns, trends, and causal relationships to gain insights into complex systems or phenomena. This research can be conducted in various fields such as psychology, sociology, economics, and environmental science, among others. By studying relationships between different factors, researchers can make informed decisions, predict outcomes, and develop effective interventions or solutions.