Yep, its only based on where you place your points. Also everyone gained 3 levels individually (cept Saito).
You can check your CS to see how many points you have, I keep that stuff updated on the Front Page under the main cast tab or whatever its called. You all have 12 Stat Points though, feel free to put them in any stat (I recommend having some balance though, don't go all out in one Stat, they are all important in one way or another for both offense and defense)
Your Talent Points, on the other hand, you got 9, but you can only put a point into a Talent once per Level Up. So since you leveled up 3 times, the max number of points you can put into any Talent is 3.