As reader's of this blog know, I am supervising a PhD student, Craig Allison (@theRedSorcerer). He's investigating whether point collation techniques or heat maps can be understood by users or not. (previous post about the project)
examples of point collation and heat maps
We'd like to see which one is better from a usabilty point of view and we'll publish the results. With this in mind Craig has created a 10 minute test and questionnaire that would help us answer this question, it can be found at
Please have a go and pass onto others.