I'm not quite sure what some of the stats do. Here is my understanding of them. Please correct me if I'm wrong.

Strength - Attack power
Dexterity - Accuracy and attack power for theifs
Vitality - Defense
Agility - Evasion and attack speed
Intellegence - Magic attack power
Mind - Magic Defense and MP amount for mages.
Charisma - No clue

And is it really true that for theifs dexterity is their attack power. If so does that mean strength does nothing for a theif?