Difficulty research explores various factors that can affect individuals' perception and experience of difficulty in tasks or activities. This includes investigating the cognitive, emotional, and motivational aspects of difficulty, as well as how different levels of difficulty can impact performance, learning, and engagement. Researchers in this field may also study strategies for managing or overcoming difficulty, such as goal setting, self-regulation, and resilience. Difficulty research can be applied to a wide range of domains, including education, psychology, sports, and computer science.