The purpose of this study was to determine the impact of a Teaching American History professional development program on content knowledge and confidence and anxiety associated with teaching economic literacy. Two content assessments and a confidence and anxiety instrument were administered to teachers prior to and immediately following a 2-week institute. Statistically significant findings included an increase in economics content knowledge and an increase in confidence combined with a decrease in anxiety. The scale and measurement model employed to examine status and subsequent change should be useful for similar professional development initiatives and evaluations.