This study of four moderately to severely aphasic subjects found that success in manual sign training programs is related to severity of aphasia, that aphasic subjects' propositional use of manual signs rarely follows simple acquisition, and that generalization to untrained stimuli or environments does not occur without additional training.…

Fifty-seven college students enrolled in their first week of introductory manual communication classes demonstrated limited ability to assess their own communication skills. A discussion of sign systems, interpreter skills, and ethics aided some students in putting their skills into perspective, but 41% continued to overestimate their abilities at…

This study evaluated the recognition and retention of transparent and nontransparent manual signs by 50 sign-naive hearing college freshmen. There was a significant decrease in the number of nontransparent signs retained as the period of time after training increased. Implications for sign language training with nonverbal hearing persons are…