Coaching is a promising method for providing professional development, which takes many forms. One such form is real-time coaching through bug-in-ear technology. This study explored the social validity of bug-in-ear coaching when provided as a form of professional development with pre-service and in-service early childhood educators. Data from two studies were qualitatively analyzed to describe early childhood educators' perceptions of the acceptability of bug-in-ear coaching with respect to the learning opportunities provided, feasibility, difficulties, and child-level outcomes. Findings suggest that BIE is deemed to be important and effective at producing educator and child outcomes. Further, educators are satisfied with the intervention and view it to be an acceptable means for receiving professional development. [This paper was published in "Journal of Early Childhood Teacher Education," v36 n4 p342-361 2015 (EJ1084706).]