Casual factors are the conditions that produced or contributed to the incident. What are the three factors?

• A. Direct cause, contributing cause, and root cause
• B. Immediate cause, contributing cause, and root cause
• C. Direct cause, root cause, and preventive action
• D. Causative factor, contributing factor, and root cause

Answer: (A)

Causal factors are understood in three levels: the direct cause, the contributing causes, and the root cause. The direct cause is the immediate event that directly led to the incident—it's the last link in the chain, such as a specific equipment failure or a worker action that caused the harm. Contributing causes are the conditions that allowed or amplified the direct cause to occur or to have a greater effect, including things like gaps in training, faulty maintenance, or unsafe procedures. The root cause is the underlying systemic reason that allowed the contributing and direct causes to exist, often tied to management decisions, policy weaknesses, or organizational culture; addressing it helps prevent recurrence. This framing is effective because it separates the immediate trigger from the enabling conditions and from the deeper systemic issues, guiding actions at both the process and organizational levels. Other options mix in terms that aren’t part of this standard three-tier model (for example, treating preventive actions as causes) or substitute nonstandard terms, which doesn’t align with the typical RCA framework.