Explorative behavioural analysis of the Tower of London puzzle: influence of structural parameters and iso-problems

The Tower of London (ToL) puzzle, a testing method to assess planning and problem solving abilities, has been employed in many variants and with a variety of tasks and performance measures so that a comparison across studies is hardly possible. In the present study we used a computerized ToL on an easy-to-handle tablet PC and followed the physical appearance, instructions given, and the selection of tasks according to Shallice's original version. We added tasks with 6, 7, and 8 moves that allow a further investigation of specific configurations, summing up to 22 tasks in total. With the goal of providing normati…