Two experiments examine the psychometric effects of providing immediate feedback on the correctness of answers to open-ended questions, and allowing participants to revise their answers following feedback. Participants answering verbal and math questions are able to correct many of their initial incorrect answers, resulting in higher revised scores. In addition, the reliability of these scores is significantly higher than the reliability of scores based on no feedback. Finally, anxiety is significantly lower following a test section with feedback and revision. (Contains 5 tables.)