The study contrasted the learning of the Rebus and Bliss symbol systems by language-delayed preschoolers. Subjects included 26 black preschool children, aged 4-6. Results showed that Rebus pre-test and post-test scores were significantly higher than Bliss pre-test and post-test scores. Results also showed a 35% improvement in identification of…

This study evaluated ease of learning 5 visual symbol sets (photopictorial, rebus, Blissymbolics, orthography, and Premack-type tokens) with 4 autistic students (ages 7-13). A second article describes the development of instructional procedures for the students, noting the contribution of behavioral, cognitive developmental, and information…