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McCauley-Moskalenko Two-Pyramid Model

Definition

Conceptual framework (Friction, 2011) distinguishing the opinion pyramid (distribution of extreme views) from the action pyramid (distribution of extremist behaviour). The two are partially independent: movement up the opinion pyramid does not directly predict movement up the action pyramid.

Source
McCauley and Moskalenko, Friction, 2011
Two pyramids
Opinion pyramid, action pyramid
Opinion pyramid tracks
Distribution of extreme views
Action pyramid tracks
Distribution of extremist behaviour

Common questions

Why does the model separate belief from behaviour?+

The authors argue that holding extreme views and committing extremist acts are only partially linked, so someone can hold radical opinions without ever moving toward violence, and conversely violent actors do not always hold the most extreme stated views, which complicates prevention efforts aimed only at opinion.

How is this used in threat assessment?+

It cautions analysts against treating radical rhetoric as a direct proxy for violence risk, encouraging separate assessment of behavioural indicators such as planning, capability, and intent rather than relying on expressed ideology alone.

Related terms

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