These answers draw in part from “Ethical Obligations to Report: Sentinel Events and Reportable Incidents” by Jennifer Cowherd, BCBA (BehaviorLive), and extend it with peer-reviewed research from our library of 27,900+ ABA research articles. Clinical framing, BACB ethics code references, and cross-links below are synthesized by Behaviorist Book Club.
View the original presentation →A sentinel event is a specific type of serious occurrence involving death, significant permanent loss of function, or serious physical or psychological injury to a client. It is called sentinel because it signals the need for immediate investigation and response. A reportable incident is a broader category that includes any event meeting the threshold for mandatory reporting to regulatory agencies, funding sources, or other oversight bodies. All sentinel events are reportable incidents, but not all reportable incidents rise to the level of a sentinel event. The specific definitions and thresholds vary by state law, organizational policy, and funding source requirements.
Common reportable events in ABA settings include physical injury to a client during services, allegations of abuse or neglect by staff, unauthorized use of restrictive procedures, client elopement resulting in harm or risk, medication errors in settings where behavior analysts oversee medication-related protocols, any event requiring emergency medical treatment, and deaths or serious injuries regardless of whether they are related to services. However, the specific list of reportable events varies by state, organization, and funding source. Behavior analysts must know the specific requirements applicable to their practice setting.
The BACB Ethics Code (2022) creates several relevant obligations. Core Principle 1.14 requires reporting ethical violations by other certificants to the BACB. Core Principle 3.08 requires addressing practices that threaten client welfare. Core Principle 1.01 requires truthfulness in all professional interactions, including incident documentation and reporting. Core Principle 2.15 addresses situations where services may need to be modified in response to safety concerns. Together, these principles establish that behavior analysts must respond to incidents transparently, report appropriately, and take corrective action to protect clients.
The immediate priority is ensuring client safety, which may include seeking medical attention, removing the client from danger, or modifying the environment. After securing safety, begin documenting the event factually and thoroughly while details are fresh. Notify your organization's designated incident response person according to established protocol. Preserve any evidence that may be needed for investigation, including physical evidence, documents, and electronic records. Do not attempt to conduct a full investigation in the immediate aftermath. Focus on safety, documentation, and notification. A formal investigation should follow according to your organization's established procedures.
Root cause analysis looks beyond the immediate cause of an incident to identify the systemic factors that allowed it to occur. Start by gathering a complete factual account through document review and witness interviews. Then ask why repeatedly for each contributing factor to trace the causal chain back to its roots. Common systemic root causes include inadequate training, unclear protocols, poor supervision, communication failures, environmental hazards, and insufficient staffing. The goal is to identify changes that will prevent recurrence, not to assign blame. Corrective actions should address the root causes, not just the proximal factors. Document the entire analysis and share findings with relevant stakeholders.
Families should be notified promptly and provided with a factual account of what occurred. Communicate what immediate steps were taken to ensure the client's safety, what investigation or review process is underway, what corrective actions are being implemented, and who the family's point of contact is for ongoing updates. Be honest about what you know and what you do not yet know. Avoid speculation, blame assignment, or premature conclusions. Express genuine concern for the client's welfare and the family's concerns. Document the conversation. The goal is transparency and accountability, which builds trust even in difficult situations.
The BACB Ethics Code (2022) is clear that client welfare takes priority over organizational interests. If your organization pressures you to under-report or conceal a reportable incident, this itself may constitute an ethical violation that you are obligated to address. Document the pressure and your response. Fulfill your reporting obligations regardless of organizational pressure. If you face retaliation for ethical reporting, consult with legal counsel about whistleblower protections that may apply in your jurisdiction. Consider reporting the organizational pressure to the BACB and relevant regulatory agencies. Your professional and legal obligations to report do not change because your employer is uncomfortable with transparency.
Partnering with funding sources and regulatory agencies brings several benefits. External partners provide additional perspective and expertise that can strengthen the investigation. Their involvement adds accountability and credibility to the process. Regulatory agencies may have access to information about similar incidents at other organizations that can inform your investigation. Collaborative investigation demonstrates organizational transparency and good faith, which can influence regulatory outcomes favorably. Additionally, early collaboration often leads to faster resolution because issues are addressed proactively rather than discovered through subsequent audits or complaints.
A reporting-supportive culture requires several elements. Leadership must communicate consistently that reporting is valued and expected, not punished. Reporting processes must be simple, accessible, and clearly defined so that staff know exactly what to report and how. Anonymous reporting options should be available for situations where staff fear direct reporting. Follow-up on reports must be visible so staff see that their concerns lead to action. Training should address not only reporting procedures but also the ethical rationale for reporting. When investigations identify systemic factors rather than blaming individuals, staff learn that reporting leads to system improvement rather than personal punishment.
Comprehensive documentation should include a factual account of the incident written as close to real-time as possible, all notifications made including to whom, when, and by what method, evidence collected and preserved, witness statements, investigation methodology and findings including root cause analysis, corrective actions implemented with timelines and responsible parties, follow-up monitoring results demonstrating whether corrective actions were effective, and all communications with the client's family, regulatory agencies, and funding sources. Documentation should be factual and objective, separating observations from interpretations. Store all incident-related documentation securely and in accordance with applicable retention requirements.
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All behavior-analytic intervention is individualized. The information on this page is for educational purposes and does not constitute clinical advice. Treatment decisions should be informed by the best available published research, individualized assessment, and obtained with the informed consent of the client or their legal guardian. Behavior analysts are responsible for practicing within the boundaries of their competence and adhering to the BACB Ethics Code for Behavior Analysts.