“…Others have noted the importance of nurse oversight in medication administration, which warrants better understanding in the context of AL. 7,23,24,26,30 Also, it is possible that the presence of an observer may have had an influence on the AL staff member's behavior as she prepared or administered the medications, resulting in fewer or more errors. In addition, the observer was not blind to the profession of the staff member, and not all characteristics related to medication errors were examined in this study.…”