👉 Categorisation, also known as classification or classificiation, is a fundamental aspect of scientific research and data analysis. It involves identifying groups or categories of objects based on their characteristics or properties. In terms of data analysis, categorisation can be used to classify data into distinct categories or groups. For example, in the field of psychology, categorization might involve assigning each participant in an experiment to one of several treatment groups based on a specific trait such as intelligence, personality, or health status.