Cumulative Item Response Theory

Cumulative Item Response Theory (CIRT) is a statistical framework used to evaluate how individuals respond to test questions, particularly in surveys or assessments like general knowledge quizzes. It examines the probability of a person correctly answering a question based on their underlying ability or knowledge level. CIRT helps in understanding how well a test item differentiates between respondents with varying knowledge, allowing for improved test design and ensuring fair measurement of what people know. Essentially, it provides insights into how different factors influence performance on knowledge assessments.