While there is evidence in the literature measuring effective clinical teacher characteristics in traditional experiences, little is known of effective characteristics expected from clinical teachers during simulated clinical experiences. This study examined which clinical teaching behaviors and characteristics are perceived by nursing students' and faculty as effective in the traditional clinical and high-fidelity simulated environments. The participants included a non-probability, purposive sample of senior nursing students and a census sample of all nursing faculty from two universities (one public, one private). Nursing students were from both traditional pre-licensure and post-baccalaureate tracks. Both full- and part-time faculty were included. A quantitative descriptive design was used with a survey containing the Nursing Clinical Teacher Effectiveness Inventory (NCTEI) developed by Knox and Mogan (1985). Demographic data was collected to determine if there was a significant difference in student and faculty perceptions based upon demographic variables. The results demonstrated faculty generally ranked all five categories in both traditional and simulated experiences higher than the students. While students and faculty agreed about the characteristics of effective clinical teachers in simulated clinical experiences, when asked to compare the simulated to the traditional environment, there were differences in perceptions. Demographic variables showed a significant difference in the perceptions of students and faculty based on ethnicity and/or race, highest degree already received, and type of university. The results of this study help to narrow the gap in the literature regarding the comparability of effective clinical teacher characteristics and behaviors in traditional and simulated clinical experiences. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]