Behavioural psychology is a field of study that focuses on understanding human behaviour and how it relates to environmental stimuli. Synonyms for behavioural psychology include behaviourism, behaviour analysis, and behavioural science. Behaviourism emphasizes the study of observable behaviour and how it can be affected by rewards and punishments. Behaviour analysis focuses on the application of behavioural principles to change undesirable behaviours. Behavioural science, on the other hand, is a multidisciplinary approach that involves the study of human behaviour from various perspectives, including sociology, psychology, and anthropology. Regardless of the term used, the study of behavioural psychology is essential for understanding human behaviour and how it can be influenced and changed.