"Educational Psychology is that branch of psychology which deals with teaching and learning.” This statement is given by -

Educational psychology is a specialized branch of psychology that focuses on how people learn and how teachers can facilitate learning more effectively. 

Key Points

• Skinner is the one who defined educational psychology as the branch of psychology that deals with teaching and learning.
• As a leading behaviorist, he emphasized the importance of observable behavior and the role of reinforcement in learning.
• His definition aligns well with the practical application of psychology in classrooms, focusing on how instruction can be structured to promote effective learning.
• Skinner’s work laid the foundation for techniques such as programmed instruction and behavior modification, which are used widely in educational settings.

Hint

• Woodworth was known for his contributions to general psychology and the concept of dynamic psychology.
• Simpson is not widely recognized for foundational definitions in educational psychology; his work is more associated with domains of learning and objectives.
• Pavlov, a Russian physiologist, is famous for classical conditioning theory, which influenced learning theories.

Hence, the correct answer is Skinner.