Background: Effective communication and interpersonal skills are key components for the optimal performance of any health care professional. Developing these skills is an integral part of residency training. Residency programs are adopting various methods to assess how well their trainees can interact with patients and coworkers. We conducted 360-degree evaluations of all our residents to assess their interpersonal and communication skills. The measurement properties of the multi-source ratings were investigated. Methods: A cross-sectional survey of 49 residents currently enrolled in our Internal Medicine residency program at Aga Khan University Hospital was conducted. Using a 360 degree evaluation technique, every resident was evaluated by...