It is worth collecting background information on the trainees' years of teaching, prior use of computers, and how much they use computers outside the classroom because it is possible that these issues could affect how well they and their students have fared with the project. However, asking them for the number of courses they took on technology is less worthwhile. It will take many of them too long to recall that information, and the information may not be relevant anyway, because they all identified themselves as needing training.