What is the purpose of effectiveness checks in incident investigations?

• A. To increase paperwork.
• B. To assign blame.
• C. To avoid future actions.
• D. To ensure corrective actions address root causes and are working.

Answer: (D)

Effectiveness checks test whether the corrective actions chosen after an incident actually fix the underlying causes and keep working over time. The goal is to close the loop: after data is gathered and actions are put in place, you verify that those actions address the root issues and that controls perform as intended under real conditions. This helps prevent recurrence by confirming improvements are real, durable, and properly sustained, not just a one-off change.

Adding extra paperwork or blaming individuals doesn’t achieve this verification. The aim isn’t to assign fault or increase administration, but to confirm the fixes truly reduce risk. Likewise, merely avoiding future actions would defeat the purpose of improving safety.