A New Multisource Feedback Tool for Evaluating the Performance of Specialty-Specific Physician Groups: Validity of the Group Monitor Instrument

Since clinical practice is a group-oriented process, it is crucial to evaluate performance on the group level. The Group Monitor (GM) is a multisource feedback tool that evaluates the performance of specialty-specific physician groups in hospital settings, as perceived by four different rater classes. In this study, we explored the validity of this tool.We explored three sources of validity evidence: (1) content, (2) response process, and (3)...