The measurement properties of mentoring relationship quality scales for mentoring programs.

The measurement properties of two new scales designed to measure global and engagement mentoring relationship quality (Global Mentoring Relationship Quality Scale and Quality of Mentoring Relationship Engagement Scale) were examined among 272 mentors, 491 children, and 554 parents participating in Big Brothers Big Sisters community mentoring programs across Canada. Results demonstrated their unidimensionality, moderate convergent validity, good external validity, and weak-to-moderate reporter concordance. Longitudinal analyses demonstrated good predictive validity of mentor and parent mentoring relationship quality scales with respect to predicting mentoring relationship status.