title: Signed English: a first evaluation.
mesh_terms: D002663:Child Language; D002675:Child, Preschool; D003638:Deafness / Q000534:rehabilitation*; D005069:Evaluation Studies as Topic; D006801:Humans; D007804:Language Development; D008369:Manual Communication; D012813:Sign Language; D014825:Vocabulary; D014833:Voice Quality