Psychologists are frequently called on to mentor students, trainees, and early faculty in various aspects associated with research. Little formal training is provided to mentors on how to effectively and successfully mentor trainees at the various developmental levels of the training process. The authors apply a developmental focus to the mentoring relationship. The literature on research mentoring is reviewed, including a review of mentorship with women and ethnic minorities. The multiple roles and functions of mentorship for clinical researchers and research scientists also are explored. Finally, the authors provide a list of the top 6 skills and behaviors that enable successful mentoring.