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title: Which countries are included in the international norm?
description: Which countries are included in the international norm?
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# Which countries are included in the international norm?

For CORE, the International norm is based on the national norms (in all N = 549):

- US data sample (N=153)
- Norway (N=396)

The International norm is a weighted average of all the local samples, ensuring equal representativeness for all countries included. National samples are included in the International norm if they have at least 300 responses locally.

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