OK, maybe I came off a bit sarcastic in that last post. My bad. I guess I'm trying to play devil's advocate a bit here, since I and many of my classmates felt that our experiences with standardized patients actually were helpful and instructive. That said, I am, in fact in the clinical years (just a bit into third year, granted, but clinical nonetheless). And our first and second year curriculum did have us working with real hospitalized patients, so I do understand the value of practicing on real hospitalized patients. The course coordinators did exactly as you said, and asked the patients beforehand if they were willing to work with us. Even some of them though, were not the greatest models, like the patient with acute pancreatitis and a j-tube who basically wouldn't let us near her belly and could barely lean forward to let us hear her lungs, or the other patient who didn't really know why he was in the hospital and actually didn't care to talk to us once he found out we couldn't give him any more answers.
I guess what I was trying to get across, and apparently I didn't do a great job of, was that I think the SP's are a good for learning the process of H&P. Yes, nobody can fake ronchi or a murmur. But before you can here ronchi or a murmur, you have to know where and how to listen for them. I contend that this is the purpose of the standardized patient - they give you a sense of what is "normal", and how to ellicit normal findings - the sound of heart and lungs, feel of the abdomen, range of motion of joints, responses of reflexes, etc., so that when you do encounter a real / hospitalized patient with abnormalities, you can say to yourself "The SP didn't feel / sound / act / react like that." And occasionally some of our SP's actually do have pathology - I had one that had about a 3/6 systolic ejection murmur, another that had a weird looking TM from an old cholesteatoma removal, and there is a story floating around (not sure how much urban legend) that there used to be one that actually had situs inversus. Never mind the SP's that actually volunteer to be paid to let you learn how to do prostate and pelvic exams. I think I'd be at least a little bit uncomfortable doing those for the very first time on a real clinic patient, not knowing what to look / feel for.
I still maintain that schools using standardized patients for evaluation is a decent idea, so they can make sure that you at least have the process down. As for the national standardized SP test, I still say its a bad idea, especially since, like I said before, and as others have said, many schools already require such a thing.
Hope that clarifies my point.