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.
Normative vocabulary development based on parent report with the MacArthur-Bates Communicative Development Inventories (MBCDI) Words & Sentences.
From Wordbank (http://wordbank.stanford.edu/contributors); Frank, Braginsky, Yurovsky, & Marchman, 2017.
