There is, however, strong disagreement over how findings on this subject should be interpreted.[5] Systematic reviews and meta-analyses of studies assessing executive functioning have failed to find compelling evidence for cognitive advantages in healthy adults[6] or in participants across a broader age range.[7] Moreover, the distribution of effect sizes in the meta-analyses suggest that the reporting of effects of bilingualism on executive functioning has been subject to publication bias, which has therefore given a distorted view of the evidence.[7]