[Irisu]

Originally Posted by Aphrah

Spoiler for Answer:

I believe each level up grants a player some points that they can invest in whichever stat they want. That's what I was led to think, anyway. Stats were never really explained all that well in the light novels.

Spoiler for Stats:

SAO only has 2 stats, they are STR and AGI. Each level up grants some points to invest.