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Updated: Jul 16, 2026

Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities
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Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities

Published on: September 11, 2021

National IQs predict differences in scholastic achievement in 67 countries

Richard Lynn1, Gerhard Meisenberg, Jaan Mikk

  • 1University of Ulster, Coleraine, Northern Ireland.

Journal of Biosocial Science
|March 27, 2007
PubMed

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