difficulty score

Difficulty score is a measurement used to evaluate how challenging a task, problem, or test question is for most people. It is usually calculated based on the percentage of individuals who can successfully complete or answer it correctly. A higher difficulty score indicates a more challenging task, as fewer people succeed, while a lower score suggests it is easier. This metric helps educators, designers, or researchers understand and compare the relative complexity of different tasks or questions, enabling better decision-making around pacing, content, or assessment strategies.