Five Tests to Spot False 'Boost Your Intelligence' Claims

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A framework of five litmus tests has been proposed to help people critically evaluate brain-training and intelligence-boosting claims from apps, ads, and self-help gurus. The guide distinguishes between four separate components often lumped under 'intelligence': fluid ability, knowledge and skill, mental sharpness, and long-term brain health. It highlights that most cognitive training studies show improvement only in closely related tasks, with little evidence of far transfer to broader real-world outcomes. The piece also warns that app-based score improvements largely reflect familiarity with the app rather than genuine cognitive gains. Practical advice offered includes prioritising sleep, learning challenging subjects, and demanding proper study designs before trusting any intelligence-enhancement claim.

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