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.
Results of participants Mary, Rose, John, and Paul on signing tests. BD represents expressive signing in the presence of pictures; CD represents expressive signing in the presence of printed words. Dotted lines show the introduction of training and define the multiple baseline design through stimulus groups. Each participant's set of graphics shows the results for stimulus group 1, 2 and 3, respectively.
