John Raven was a prominent English psychologist of the 20th century, whose name is inextricably linked to the development of psychometrics and the creation of one of the most famous tools for assessing intelligence - Raven's Progressive Matrices. His work had a significant impact on the field of psychological testing and the study of human ability.
Early Years and Education
John Raven was born on June 28, 1902, in London. From an early age, he developed an interest in psychology despite family difficulties and educational obstacles, including struggles with dyslexia. His tenacity and pursuit of knowledge led him to study at King's College London, where he immersed himself in the study of psychology.
Career and Achievements
Independent counselor and teacher
After completing his studies, Raven began his professional career as an independent counselor and teacher. He worked in various educational settings, including a boarding school for children with physical disabilities, where he applied his knowledge and skills to help students.

Development of Progressive Matrices
Raven's most significant contribution to psychology was the development of Raven's Progressive Matrices, a test designed to assess the non-verbal aspect of intelligence. This test made it possible to measure a person's cognitive abilities without the influence of language and cultural factors, making it a unique instrument internationally.
Pedagogical testing
Raven also authored important works in the field of pedagogical testing in which he criticized the limitations of existing measurement approaches in education and psychology. He proposed new theoretical frameworks for assessing competence, motivation, and behavior, seeking a deeper understanding of human abilities and their development.
Legacy and Impact
John Raven's work has left a significant mark on psychology and education. His theoretical developments and practical tools continue to be used around the world to study and assess human abilities. Raven's progressive matrices are still one of the most popular and respected tests of intelligence, and Raven's ideas on educational testing continue to inspire scholars and practitioners.
Conclusion
John Raven is a figure who played a key role in the development of psychometrics and has left an indelible mark on psychological science. His work, grounded in his quest to understand the human mind and abilities, continues to inspire and guide researchers and practitioners around the world.