The _____________ Theory for accident investigation is the most basic of the accident causation models. In this theory, it is thought that there is one event solely responsible for an accident or incident.

The _____________ Theory for accident investigation is the most basic of the accident causation models. In this theory, it is thought that there is one event solely responsible for an accident or incident.

• A. Single Factor
• B. Domino
• C. Complex
• D. Multiple Causation

Answer: (A)

The single-factor view is the simplest way to understand accident causes: there is one primary event or factor that directly leads to the incident. This model treats the accident as a direct cause-and-effect occurrence, focusing on identifying that one root event. The description “one event solely responsible” matches this idea exactly, which is why it’s the best choice for the most basic accident causation theory. Other theories describe more complex relationships: the Domino theory sees a chain of sequential events where removing a single link can prevent the next, and Complex or Multiple Causation acknowledges many interacting factors.

The single-factor view is the simplest way to understand accident causes: there is one primary event or factor that directly leads to the incident. This model treats the accident as a direct cause-and-effect occurrence, focusing on identifying that one root event. The description “one event solely responsible” matches this idea exactly, which is why it’s the best choice for the most basic accident causation theory. Other theories describe more complex relationships: the Domino theory sees a chain of sequential events where removing a single link can prevent the next, and Complex or Multiple Causation acknowledges many interacting factors.