Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mean effect (Hedges' g) of PA as a function of cognitive domain, based on a subgroup of included studies. No significant between-group difference (p>0.05) was observed. Error bars show standard errors. N=number of data points within each domain.
