"Cat food, cola, toothpaste." Ned's roommate recites items over the phone as he throws his books in the backseat and gets into his car. Ned is supposed to stop at the store on the way home. The roommate continues to list a few more items. Finally, he wraps up, "Coffee creamer, spaghetti sauce, dish soap, and iced tea mix." Ned forgets a couple of things, but he does get the cat food, cola, and toothpaste. His memory for these items reflects the _____ effect.