Engaging in deliberate practice opportunities during special education teacher preparation may increase the implementation and sustainability of evidence-based practices with fidelity in K-12 classrooms. We used a concurrent multiple baseline design across participants to evaluate the effects of providing immediate feedback through "e"Coaching with online Bug-In-Ear (BIE) technology on special education teacher candidates' acquisition and sustained use of behavior specific praise (BSP) during Mursion™ classroom simulations. We also measured equitable praise rates and used the Behavior Specific Praise Observational Tool (BSP-OT) to evaluate teacher candidates' praise variety. Results showed a functional relation between the intervention and teacher candidates' use of BSP. Maintenance, equity, and praise variety data indicated promising social validity findings.