I am also a student working on my thesis, and I find it confusing that you state your area of interest as young aspies/high-functioning autistics who play video games; yet you are looking for parents to participate in what sounds like primarily a survey of parental views on gaming and their children, and their"concerns". What, if I may ask, are you hoping to learn about gamer aspies from this? As both, and with a parent of the opinion that video games are a far more disconcerting use of any of my time, assuming "I'm isolating or addicted", whereas my NT sister's spending hours texting, twittering and facebook are "normal". If you were to ask my father about aspies and gaming versus myself, if I were still among your target age group; you would not get any picture of the personal benefits I can attest to from my hobby.
I guess I am just wondering: is there something specific you are thinking or hoping your research will prove about the good or bad nature of gaming and teens with aspergers or HFA, or have I misunderstood the intent of the study as examining teens and games, as opposed to parental views on the aforementioned?