Which area of psychology is James Cattell primarily associated with?

• A. The study of behaviorism
• B. The development of educational psychology
• C. The study of intelligence
• D. The research of personality traits

Answer: (C)

James Cattell is primarily recognized for his significant contributions to the study of intelligence. He was one of the first psychologists to apply statistical methods to psychological measurements and played a crucial role in the development of intelligence testing. Cattell developed a number of tests that aimed to quantify mental capabilities, effectively laying the groundwork for the field of psychometrics. His research emphasized the scientific measurement of intelligence, and he is well-known for introducing the concept of mental tests. This focus on intelligence assessment helped shape educational psychology and inform theories concerning cognitive function, making his work foundational in understanding individual differences in intelligence.