I think it's a very strong possibility. I'm a 4w3 and when I was growing up I was pushed to succeed and also to be more extroverted, which are 3 traits. Also, as an adult, I think that having to live Real Life has nurtured my 3 wing. It would be much easier to be a pure 4 if I were independently wealthy, or at least had a trust fund.
"Sentiment without action is the ruin of the soul." - Edward Abbey
I can honostly say that I was much different as a child, If I were to take the test as a grade 3-4 child I would probably score a 4w5. But today Im a hardcore 6w5 (somtimes I wonder if its 5w6) But in the end you have to remember that whatever nature v nurture traits that a person possesses probably dont conform to the test, seeing as, its a test.
My enneagram type is changing constantly! I've been a 2, a 5, a 7 and at the moment I'm apparently a 9w8. Well, when I was a child, I was a very extreme 9, to be honest, I was always trying to make peace and stuff, but my dad always wanted me to be more dominant and sometimes even cruel. I was what he called "way to sweet" and he liked it when I fought with outher children. So it might be possible.
I was sitting outside the classroom waiting to go in, and I saw an airplane hit the tower. The TV was obviously on. I used to fly myself and I said, "There's one terrible pilot."
- George W. Bush -
I got no help with my parent for my Four wing, neither of them has a clue what Four is... they really wouldn't understand it in the least, they are nothing like Fours. (My mom's a bona fide Two, my dad probably a 7w8 or 8w7.)
If they did impact it, it was through negative reinforcement... which thus COULD be attributed to them (my sense of loneliness and desire to be unique and desired and appreciated, etc., was all raised to a fevered pitch) or thus not attributable to them at all. I can't tell; I tend to think these things are basic hardwired reactions (based on nervous system capabilities) that are then developed by environment via behavioral feedback loops.
"Hey Capa -- We're only stardust." ~ "Sunshine"
“Pleasure to me is wonder—the unexplored, the unexpected, the thing that is hidden and the changeless thing that lurks behind superficial mutability. To trace the remote in the immediate; the eternal in the ephemeral; the past in the present; the infinite in the finite; these are to me the springs of delight and beauty.” ~ H.P. Lovecraft