The 'Prudent' part of Effective Prudent True came from my big brother (who was already talking with his daughter about using that filter). The True came out in discussions with Epeepunk (DH), who guided me back to that word when I tried to find other words because I wasn't looking for 'TRUTH' but True to self. But ... well, nothing else worked. Effective came from several conversations with my little brother (the Golden Child) when he was a teenager himself.
I'm more of an assembler or synthesizer than the idea wellspring... always bringing bits from one place, and bits from someplace else, and recognizing how they fit together in a different way. Without those inspirations, I'm pretty well sunk.
Which is also why I read so much. I read research, parenting books, articles, theory, you name it.
Speaking of which, I'm thinking of adding a page that is just for book reviews of my existing parenting bookshelf (which is extensive).