A randomized controlled trial of an intervention to increase cultural diversity awareness of research mentors of undergraduate students.

Cultural diversity variables like race and/or ethnicity influence research mentoring relationships, but mentors may not know how to address such variables with their mentees. Using a randomized controlled trial design, we tested a mentor training intervention to increase mentors' awareness and skill in addressing cultural diversity in research mentoring relationships, documenting its impact on mentors and their undergraduate mentees' ratings of mentor effectiveness. Participants were a national sample of 216 mentors and 117 mentees from 32 undergraduate research training programs in the United States. Mentors in the experimental condition reported greater gains than those in the comparison condition regarding the relevance of their racial/ethnic identity to mentoring and their confidence to mentor students across diverse cultural identities. Paired mentees of mentors in the experimental group rated their mentors higher at respectfully broaching and creating opportunities to address race/ethnicity matters than those with mentors in the comparison group. Our results support the efficacy of culturally focused mentorship education.