Spell Skillups

[iruinedyourday]

Hey guys, got some questions about these spell skillups.

If I cast a higher level spell, will my skill in that spell category go up quicker?

Does int/wis (respective to caster/priest) affect the rate of skillups?

or is it int all the way?

meaning do i need to have good wis to get skillups as a priest or does int matter?

thanks!