That’s the whole point. A full scale study would eliminate one's beliefs because all the facts are now out rather than piecemeal or incomplete studies.
My proposal is not about ASL users’ QOL. I can tell you that ASL users (as the only factor) will not have the same QOL as that of hearing peers. There are more factors involved than just knowing ASL.
If that question is true, then why the ASL users are lower even in a environment where ASL is used consistently? Therefore, it has nothing to do with whether or not the society is ASL capable. Hence, ASL is one variable and there are more factors involved than just knowing ASL. That’s why my idea has variety of variables to study. It is about finding what maximize the deaf/HOH child’s life. Once identified, the deaf/HOH's QOL should somewhat be equivalent to that of hearing (a prefect equivalent is impossible due to society acceptance of that disability).
Yes and No.
Is everyone around the mainstreaming child uses ASL? (I am not talking about other hearing children but deaf related staff)
Is the interpreter highly qualified? If so, interpreter uses ASL?
Mainstreamed child’s parents and siblings consistently use ASL and are proficient signers.
Type of hearing loss of that mainstreaming child
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Deaf family uses ASL?
Deaf school uses ASL consistently?
Signing skills of teachers at deaf school?
Hearing loss of that child at deaf school?
I can go on and on with more variables but you get the gist of my point. You would be surprised how each of those factors can negatively or positively answer your question.