"cat food, cola, toothpaste," your roommate begins reciting items into the phone as you throw your books in the backseat and get into your car; you're supposed to hit the store on the way home. he continues to list a few more items. finally, he wraps up: "coffee creamer, spaghetti sauce, dish liquid, and ice tea mix." you forget a couple of things, but you do manage to get the cat food, cola, and toothpaste. your memory for these items reflects the _________ effect.