I was looking at the rogue page in the compendium and it says, "Dexterity is the most important stat for rogues. High dexterity boosts a rogue's defense and reflexes and improves key rogue skills like sneaking and trap disarming." Those of you reading this forum probably already know that trap disarming is an intelligence skill.

http://compendium.ddo.com/wiki/Class:Rogue