A major unplanned, unintended contributor to an incident that if eliminated would have prevented the occurrence or reduced its severity or frequency is called a

• A. Causal factor
• B. Circumstantial factor
• C. Primary driver
• D. Background condition

Answer: (A)

The concept being tested is identifying the specific element that directly caused or contributed to an incident. A causal factor is a particular action, condition, or event that, if it had not occurred, would have prevented the incident or reduced its severity or frequency. It sits in the direct cause-and-effect chain linking the hazard to the outcome, making it the primary target for corrective action.

For example, if a machine operated while a safety guard was missing, the missing guard is a causal factor because its presence directly enabled the unsafe condition. Fixing or removing that factor would prevent the incident from occurring or lessen its impact. This differs from background conditions, which set the stage for risk but do not by themselves create the direct path to the incident.