How is materiality assessed under the probability and magnitude test?

How is materiality assessed under the probability and magnitude test?

• A. By the magnitude of impact alone.
• B. By whether the event would change an investor's decision.
• C. By the probability that the event will occur and the magnitude of its impact.
• D. By whether the event is legally required to be disclosed.

Answer: (C)

Materiality under this framework is determined by two factors together: how likely the event is to occur and how large its potential impact could be. When both probability and magnitude are significant, the event is material because it could meaningfully affect the entity’s value in the eyes of investors or other stakeholders. If either factor is small—low probability or small potential impact—the event may not reach material significance. Why not rely on magnitude alone? A huge potential impact doesn’t matter if it’s extremely unlikely to happen. Why not rely on whether it would change an investor’s decision? That outcome depends on the assessment of probability and magnitude, not a separate standard. And regulatory disclosure requirements cover what must be disclosed by law, which is a separate consideration from the materiality threshold used to evaluate sustainability events for reporting purposes.

Materiality under this framework is determined by two factors together: how likely the event is to occur and how large its potential impact could be. When both probability and magnitude are significant, the event is material because it could meaningfully affect the entity’s value in the eyes of investors or other stakeholders. If either factor is small—low probability or small potential impact—the event may not reach material significance.

Why not rely on magnitude alone? A huge potential impact doesn’t matter if it’s extremely unlikely to happen. Why not rely on whether it would change an investor’s decision? That outcome depends on the assessment of probability and magnitude, not a separate standard. And regulatory disclosure requirements cover what must be disclosed by law, which is a separate consideration from the materiality threshold used to evaluate sustainability events for reporting purposes.