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.
Item characteristic curves for “Yes” in the significantly non-equivalent CES-D items, interviewer vs. Web. Largest difference between the groups are highlighted. First row items (A) are negatively worded while second row ones (B) are positively worded.
