The release of the Lego Mindstorms kit has carried the fexibility and creativity of Lego into the world of robotics, whilst targeting a variety of children and adults audiences alike. To achieve this goal, a programming language called NXT-G was developed to provide everyone full control of the Lego Mindstorms kit, regardless of their programming experience. In this project, the programming language's ambition is tested through practical experiments. In a controlled experiment, twelve participants carried out four tasks using the NXT-G software and a Lego robot. Their performances were then analysed to confirm the stated claim.