Yes, I'm pretty sure it would. Also, while in Pathfinder +Int items don't give you skillpoints they do come with built in skills. So if you slap on a headband of +4 int, you'll get two skills at maximum ranks. These skills are pre-built into the item however, so it can be useless if they overlap with your character. (which will only happen if you GM is a jerk.) Here are the rules.