Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
The concept that a certain factor is the only determinant or cause of something, without any other contributing factors.
Related terms
Multifactorial: Refers to situations where multiple factors or causes influence a particular outcome.
Interaction Effect: Describes how two or more factors working together can produce an effect that is different from what would be expected based on their individual effects.