Psychometric properties of the mentor behaviour scale in a sample of Malaysian medical students

Objectives: To determine the psychometric properties of the Mentor Behaviour Scale (MBS), a 15-item inventory that evaluates four supportive mentor behaviours in terms of construct validity and internal consistency. Method: A cross-sectional study was carried out on a sample of medical students in their final year at Universiti Sains Malaysia. Confirmatory factor analysis (CFA) was performed using AMOS 22 to assess construct validity. Reliability analysis was performed using SPSS 22 to assess internal consistency. Results: A total of 159 final year medical students participated. CFA showed that the original four-factor model with 15 items achieved acceptable values for the goodness of fit indices, suggesting a good model fit (X2 = 198.295, ChiSq/df = 2.418, RMSEA = 0.095, GFI = 0.867, CFI = 0.953, NFI = 0.923, TLI = 0.940). The Cronbach's alpha values of the mentoring relationship structure, engagement, and competency support domains were 0.96, 0.90 and 0.88, respectively. For autonomy support, the Cronbach's alpha value was 0.62. Conclusion: MBS demonstrates a satisfactory level of construct validity and a high level of internal consistency in measuring supportive mentor behaviours in a medical school setting. This result suggests that MBS can be used as a mentorship evaluation tool for feedback in the context of a Malaysian medical school