Nonretarded trainable retarded and mildly retarded individuals (N=106), matched on MA, attempted to identify emotional states of tape-recorded voices speaking in an unfamiliar language. Although analyses indicated that trainable subjects were less accurate overall than were mildly retarded and nonretarded subjects, all three groups were able to…

Seven mentally retarded adolescents received either verbal or nonverbal training on a shape-sorting task within a multiple baseline design. Both training sequences resulted in the successful acquisition of the target performance, but only the verbal training sequence facilitated generalization of performance to a novel shape and to a new…

The educational relevance of a nonverbal procedure for assessing learning potential in educable mentally handicapped persons was tested with a classroom laboratory science program in electricity. (Author)

It was found that Ss in all conditions showed significant pretest to post-test performance increases on the telephone skills tasks--suggesting that, for skill development tasks with retarded adults, demonstration and verbal summaries may add little to the practice experience and that group delivery of training procedures is cost-effective.…