In this article we provide an overview of the nature and scope of multisource feedback (MSF) and provide empirical evidence of its reliability, validity, and feasibility in one of the health professions. The overall internal consistency reliability (Cronbach alpha) of MSF instruments is generally greater than 0.96 for self and informants such as patients, coworker, and colleague surveys. Generalizability coefficients for the assessors across persons are approximately 0.80. There is also substantial evidence of content, criterion-related and some evidence of construct validity of the MSF instruments applied in the health professions. Based on these findings, we recommend the development and use of a MSF system for practicing school psychologists, present information about how MSF instruments can be constructed, and provide examples of what these instruments could look like.