More focal, less heterogeneous? Multi-level meta-analysis of cathodal high-definition transcranial direct current stimulation effects on language and cognition.

J Neural Transm (Vienna) · 2022 · PMC9217872 · PMID 35585206

Europe PMC DOI

hedged sentence

0.0001

closest p · 0.0× alpha

0.0001

boldest claim

The sentences

highly significantp < 0.0001actually significant

The Q test for true heterogeneity was highly significant, Q E (76) = 133.23, p < 0.0001, with estimated variance components of σ 2 Level 3 < 0.001 and σ 2 Level 2 = 0.056.

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