They can't tell you how much weight will be given to the psychologist's recommendation because they don't know. It's a team decision, and until you meet, nobody really knows how it's going to go. I've gone into a meeting knowing what I was going to advocate for, and knowing what the school psych's recommendation was going to be. And then I've seen the combination of personalities that show up for the meeting and the information that comes to light take the team in a completely different direction.
As a professional, I prepare for the meeting, I might try to get a sense of what page each of the experts are on, including the parents. I try to avoid bombshells, because they are counterproductive. Surprises do happen, and if we knew how every meeting was going to turn out, we'd probably be guilty of predetermination.
