In this replication study, we examined the effect of educators' participation in a practice-based professional learning series for designing, implementing, and evaluating Functional Assessment-based Interventions (FABI; Umbreit, Liaupsin, Ferro, & Lane, 2007) on their actual knowledge and perceived knowledge, confidence, and usefulness of concepts taught. Participants completed the Knowledge, Confidence, and Use Survey prior to and at the conclusion of the six-part learning series. Consistent with earlier inquiry, results indicated participants demonstrated statistically significant improvements in the constructs measured. This study extended previous research by examining the extent to which school-based teams attending this professional learning series completed each step in this systematic approach to FABI.