Short response while I await full details for you...
I was sent this by a student at Imperial College (where I work) who is conducting the study for a piece of design engineering coursework. They sent it around the university bike-users mailing list and I suggested they could get more responses if they posted a request on some cycling forums (LFGSS, CTC, YACF), which I have done for them as favour. Anyone who has feedback (positive or negative) is welcome to PM me and I can put you in touch with them.
It's perfectly understandable to want to know where you are sending your information, no matter how anonymous and innocuous it may seem, so I've asked them to give me some kind of statement I can put in the original post that will answer these concerns. Hopefully this will suffice in the meantime.