substantial factor test

substantial factor test

A test used to prove proximate cause in alleged medical negligence, when independent events are linked to harm—i.e., was the defendant’s negligent act a substantial factor in causing the alleged harm?

substantial factor test

Forensic medicine A test used to prove proximate cause in alleged negligence, when independent events are linked to harm Issue Was defendant's negligent act a substantial factor in causing the alleged harm. See 'But for' test, Negligence, Proximate cause.
References in periodicals archive ?
Like foreseeability, however, the substantial factor test can easily be misapplied.
The substantial factor test can be illustrated by a small, easily controlled fire that joins a second larger fire and ultimately burns down a house.
The substantial factor test allows the court to decide, as a matter of law, the issue of proximate cause.