An interactive response, storage and tracking system delivered through an interactive medium (e.g. mobile, internet, kiosk in shops) whereby the provided visual stimuli enables consumers/respondents/users to select a stimulus that best answers their response to a given question. These visual ‘answers’ are then collated to form ‘clusters’ of respondents that share the same or similar preferences thereby enabling the viewer of such information to understand the propensity of a given ‘cluster’ to behave, react, respond, perform and/or purchase.