Read: Davis, D., Mazmanian, P., Fordis, M., Harrison, R.V., Thorpe, K., Perrier, L. (2006). Accuracy of physician self-assessment compared with observed measures of competence. Journal of the American Medical Association, 296, 9, 1094-1102.
I would not waste my time asking students how they feel about simulation anymore, we know they like it. (And I think you would have a very hard time getting published with this, if this is your aim.)That is the lowest form of evaluation, Kirkpatrick's Level 1. You are proposing then, to ask them to evaluate for themselves whether they will transfer knowledge to the workplace, Kirkpatrick's Level 3. I am not sure students are the right one's to ask, as they really don't know what our jobs entail, even in school. I would ask their teachers or preceptors if they see a difference in the students. But the BEST evaluation of transfer to the workplace would be if the clinical instructors did not know which students had been in simulation. Now you are on to something.
Coupling the tool you propose with something meatier is a good idea. Get two or three data points, and you have something useful. :)