The purpose of this study was to compare American and Scottish preservice principals' post-internship concerns about becoming a principal. The survey findings for this study showed that overall American preservice principals were more concerned about becoming principals than their Scottish preservice counterparts. Based on the groups' discussion of their internship experiences, these differences may be related to three factors. First, because Scottish preservice principals had individual university supervisors, they may have received more individual attention, enabling them to more readily share their concerns about becoming a principal. Second, Scottish preservice principals had more formal mentors in the internship experience. The addition of a principal from a different district as a mentor may have been particularly helpful in addressing a wider range of preservice principal concerns. Finally, Scottish preservice principals' internship experience was twice as long and was based upon development and implementation of a school improvement plan rather than a list of activities. In sum, Scottish preservice principals benefited from more time and opportunities to practice and receive feedback on their leadership skills. (Contains 1 table and 11 endnotes.)