system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The study of human behaviour is defined as:
assistant
The correct answer is  Psychology is defined as the study of human behaviour of how people behave and why they behave in the way they do. Ref: Park 21st edition page: 623.