Do cognitive interventions for preschoolers improve executive functions and reduce ADHD and externalizing symptoms? A meta-analysis of randomized controlled trials.

Eur Child Adolesc Psychiatry · 2021 · PMC8505290 · PMID 32888095

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did not reach statistical significanceno p-value reported

The weighted mean effect size of the five respective studies was d = 0.24 and did not reach statistical significance.

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