FIGURE 1.
Components of social interaction at Time 1 (when children were 11 or 14 months of age) and at Time 2 (when children were 33 months of age). ∗∗∗p < 0.001.
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.