Doubts in T region may say anyone. More of that from F types.
There is nothing to be assured it's "role". I do not recommend to use functions specifics of model A places as those are doubtful and muddy.
It's possibly to use dichotomies, values, IR effects - that has higher chance to direct on correct type.
He'll can understand between EII / EIE by IR effects. The easiest would be to try my IR test.
@Sol I'm sure there is a lot to what you say; it's just that it's not something IEEs say. They might say what they think and ask "does that make sense to you?" but saying what they think and then undermining their own thoughts by giving the authority to judge to the crowd? No.
You can explain it by Te inferior, thinking as contact function or by the asking/declaring dichotomy, whatever. My observations are just that EII does this, not IEE, and I take that as fact. When structural explanations become too muddled and ambivalent, I don't see the point. I'm a Te valuer after all.