Training participants often ask later to hear how the staff used their ratings and suggestions. Be wary of asking about things that are not going to change. Surveys are quick, taken at a time when people want to leave. Many training participants approach the task of evaluating a course in a cursory manner. After all, it is not their course.
Statistical trends depend as much on group composition as on design and delivery.
Statistical trends are not comparable when design and delivery change. Not all instrument items are equally important, and often some of them do not even match the rating scale. For example, adults tend to rate lectures lower than they rate experimental training exercises. In addition, rating a presentation is a contaminated act. The emphasis is often on excitement.