This intervention report presents findings from a systematic review of "functional behavioral assessment-based interventions" conducted using the WWC Procedures and Standards Handbook, version 3.0, and the Children Identified With or At Risk for an Emotional Disturbance review protocol, version 3.0. Functional behavioral assessment (FBA) is an individualized problem-solving process for addressing student problem behavior. An assessment is conducted to identify the purpose or function of a student's problem behavior. This assessment process involves collecting information about the environmental conditions that precede the problem behavior and the subsequent rewards that reinforce the behavior. The information that is gathered is then used to identify and implement individualized interventions aimed at reducing problem behaviors and increasing positive behaviors. The What Works Clearinghouse (WWC) identified 17 studies of FBA-based interventions that both fall within the scope of the Children Identified with or At Risk for an Emotional Disturbance topic area and meet WWC pilot single-case design standards. Seven studies meet pilot single-case design standards without reservations, and 10 studies meet pilot single-case design standards with reservations. Together, these single-case design studies included 39 children between 5 and 18 years old who are identified with or at risk for an emotional disturbance. Those 17 studies are summarized in this report. Appended are: (1) Research details for Christensen et al. (2004); (2) Research details for Hagan-Burke et al. (2015); (3) Research details for Hansen et al. (2014); (4) Research details for Kern et al. (1994); (5) Research details for Lane et al. (2007a); (6) Research details for Lane et al. (2007b); (7) Research details for Losinski et al. (2015); (8) Research details for Christensen et al. (2012); (9) Research details for Clarke et al. (1995); (10) Research details for Davis et al. (2012); (11) Research details for Dunlap et al. (1995); (12) Research details for Dunlap et al. (1996); (13) Research details for Janney et al. (2013); (14) Research details for Kern et al. (2001); (15) Research details for Mustian (2011); (16) Research details for Nahgahgwon et al. (2010); (17) Outcome measures for each domain; (18) Single-case design findings included in the effectiveness ratings; and (19) Single-case design findings in a domain not included in the effectiveness ratings. WWC rating criteria and a glossary of terms are also provided.