The final report consists of three studies on aspects of a common theme, that a hearing impaired (HI) person's performance on information processing tasks depends on interactions of that person's cognitive structure and strategies with properties of materials to be processed and task demands. The first study, "Recall of Temporal/Spatial…

This final report presents eight papers resulting from research conducted during the third and final year of the "Handicapped Children as Tutors" project, which investigated effects of involving handicapped students as tutors of disabled and non-disabled elementary and secondary school students. Results of all the research showed…

One of a regular series on the status and progress of studies into the nature of speech, instrumentation for its investigation, and practical applications of research, this report covers the period of January 1 to March 31, 1982. The 13 studies deal with the following topics: (1) speech perception and memory coding in relation to reading ability,…

A collection of research materials on sign language and primatology is presented here. The essays attempt to show that: sign language is a legitimate language that can be learned not only by humans but by nonhuman primates as well, and nonhuman primates have the capability to acquire a human language using a different mode. The following…