Sam needs further functional assessment, medication management, and monitoring of the side effects of medication. He also needs more interpersonal contact in a structured environment. Thus Sam might benefit from a stay in a short-term, full-time partial hospital program—from four to six weeks, five days a week. Some investigators have suggested that the prescribed length of stay in a partial hospital program negatively influences attendance—that is, the longer the stay, the lower the rate of attendance (2,3). Studies also suggest that the number of prescribed days per week is positively related to attendance (2,4). A patient who attends on a full-time basis—that is, five days a week—and for a relatively short time may have a better attendance record.