Critical thinking is an essential component to competent nursing practice. Although critical thinking has been widely studied among student nurses, little research has been done to evaluate the level of critical thinking among experienced nurses. The purpose of this correlational quantitative research study was to determine the relationships among education, experience, and critical thinking ability, measured through scores achieved on the California Critical Thinking Skills Test (CCTST), and results of a demographic survey, among 44 experienced RNs in the Las Vegas, Nevada area. Results of the data demonstrated an increase in critical thinking ability as education increased. The implications for nursing leadership were discussed. Based on the findings, recommendations were made for nursing education, nursing leadership, and nursing practice.