Maybe you'd get more responses if your questions were more precise.

First, you ask if I fly for business and if I book myself. OK.

But then you ask if I travel short haul, medium, long haul. Do you really want to know if I travel? Or do you want to know if I *fly* short haul, etc.? It is unclear to me.

Farther down, you ask how important "Bonus Miles/Points" are. Why don't you ask about Status Miles/Points? I'm left with the impression that you don't distinguish between the two, but for frequent flyers that is often a most important distinction. (Which is why they are often separate, or in the case of Aeroplan and Altitude even separate programs.)

Furthermore, you always speak of "favourite alliance/airline", as if that were interchangeable. That leaves me scratching my head how to answer your questions. My favourite airline is Air North, hands down. They don't even have a frequent flier program. (They treat me as a human being, rather than a platinum crusted gold bullion key account.)
There are a few other airlines I enjoy, only one of which is a member of my favourite alliance.

I wish you good luck with your thesis, and moderators will move your posting to a better suited forum, but you may want to spend more time reading Flyertalk to develop a better understanding of your target group before finalising the questionnaire.