Large-scale assessment refers to the use of standardized tests or assessments to measure the knowledge, skills, and abilities of a large group of individuals, such as students in a school district, employees in a company, or citizens in a country. These assessments are typically used to evaluate and compare the performance of individuals or groups, make decisions about educational programs, inform policy decisions, and assess the overall effectiveness of educational systems or organizations. Large-scale assessments are often conducted at the national or state level and are used to gather data on a wide range of subjects, including academic achievement, cognitive abilities, and socio-emotional skills.