William H. Perry

William H. Perry was an American psychologist best known for his work on cognitive development and learning in college students. He developed a model of intellectual development that describes how individuals progress through different stages of understanding complex ideas and knowledge. His stages range from a simplistic view of knowledge as absolute and certain to a more advanced understanding that recognizes the complexity and uncertainty of knowledge. Perry's work has significantly influenced education, helping educators understand how to better support students in their cognitive and moral development during their formative college years.