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.
The effect size is stratified by study quality score (a) for acquisition memory and (b) for retention memory. The gray bands represent the 95 % CI for the global estimated effect size. The gray bands represent the 95 % CI for the global estimated effect size
