Not trying to be rude but who taught you Questionaire format and has anyone i.e a lecturer looked at your question style?
First off, how can you ask someone if they are Casual / Hardcore without providing a definition and an explanation of what you are basing each on in terms of numerics. (Quantitative)
probably best to get sat down and devise a proper questionaire or get someone to look at it and approve it first.
Not too mention you're not providing any ethics form with this.
Kinetic