Behaviouristic is a word that refers to the study of behaviour in organisms, especially humans. However, there are several synonyms that can be used instead of behaviouristic, depending on the context. These synonyms include behavioural, psychological, and cognitive. The term behavioural is used in reference to the measurement and analysis of behaviour, while psychological focuses on the mental processes and the functioning of the mind. Cognitive, on the other hand, refers to the processes of thinking, reasoning, and learning. Other synonyms for behaviouristic could include empirical, experimental, and scientific, as these words also pertain to the study of behaviour in a scientific and systematic manner.