Linda Acredolo and Susan Goodwyn (2009) found that second graders who were encouraged to use a signing system during their second year
A) were delayed in their language development.
B) showed advanced social skills compared to other children.
C) continued to use the signing system,as well as verbal means of communication.
D) scored 12 IQ points higher than those children who did not use a signing system.
Correct Answer:
Verified
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