Behaviourism in Computer-Assisted Language Learning (CALL) refers to an approach that is grounded in the behaviourist theory of learning. This theory, originating from psychologists like B.F. Skinner, posits that learning is a change in observable behaviour caused by external stimuli in the environment. In the context of CALL, behaviourism manifests in several key ways: Repetitive Practice and Drilling: CALL programs based on behaviourist principles often emphasize repetitive language exercises and drilling. This is based on the idea that repetition and practice are crucial for learning a new language, where correct responses are reinforced over time. Programmed Instruction: This approach often uses programmed instruction, a method where language learning is broken down into small, manageable units, and learners must master each unit before proceeding to the next. While behaviourist approaches have been foundational in the development of early CALL programs, modern language learning theories and practices have evolved to incorporate more cognitive and constructivist approaches, focusing on the learner's internal processing and understanding, and the use of language in authentic contexts. However, elements of behaviourism, such as the use of repetitive practice and immediate feedback, remain integral in many types of language learning software and applications.