[Scoobert2000]

From what I've noticed it seems like Temp Attack and Defense Boost (any versions) effect more than Melee Attack Damage:

Here's what it also effects:

1. Grenade
   
2. Range Attack Damage
   

Range Attack Damage is also based off of if your using the +100 or +150 Range Attack Damage skill set

[hollieleuschke]

I would never know about it, if I didn't check this page.