A psychologist who studies effective teaching methods would likely major in which field?

A psychologist who studies effective teaching methods would likely major in Educational Psychology. This field focuses on understanding how people learn and the best practices for teaching. It encompasses research on instructional strategies, learning environments, and the cognitive, emotional, and social aspects that influence education.

Educational psychologists are concerned with applying psychological principles to improve educational processes and outcomes, making this field the most relevant for someone studying effective teaching methods. The other fields, while related to psychology, focus on different aspects of human behavior and cognition. Developmental Psychology primarily examines changes across a person's lifespan, Experimental Psychology focuses on research methodologies and experimental processes in various psychological phenomena, and Cognitive Psychology deals with mental processes such as perception, memory, and problem-solving without a specifically educational context. Each of these areas offers valuable insights, but for the specific focus on teaching methods and their effectiveness, Educational Psychology is the most appropriate choice.