George Rasch

George Rasch was a Danish mathematician and statistician known for his work in measurement theory, particularly in educational assessment. He developed the Rasch model, a statistical approach that helps evaluate and analyze data from tests and surveys. This model ensures that the scores reflect the actual ability of individuals and the difficulty of items, allowing for fair comparisons. Rasch's methods have greatly influenced psychometrics, helping educators and researchers create reliable measurement tools that provide insights into student learning, knowledge, and proficiency. His contributions continue to shape the way assessments are designed and interpreted.