
Ronald K. Hambleton
Ronald K. Hambleton is an influential psychometrician known for his work in educational measurement and assessment. He has focused on developing fair and effective testing methods that accurately reflect a student's knowledge and abilities. His notable contributions include advancements in creating well-structured test items and the use of item response theory, which helps in understanding how different test questions function for various populations. Hambleton’s research has significantly impacted how educational assessments are designed and evaluated, ensuring they are reliable and valid tools for measuring student learning and achievement.