Psychological predictors of self-concept, behavior problems, and social competence of 55 siblings of developmentally disabled children were compared with those in 55 siblings of nondisabled children. Distinct psychological predictors for children with developmentally disabled siblings included parental stress and resources, perceived family social…

This study examined empirically the functionality of sign language and iconic communication book symbols in community settings. Subjects were two adolescent students with autism. Results demonstrated successful communication by the students with communication books but not with signs. (Author/JDD)

Attempts to identify deficits in object knowledge specific to the autistic syndrome. Examines the correspondence between sensorimotor and play behaviors and language in mentally retarded and normal children. Determines whether these correspondences are different for autistic, mentally retarded, and normal children.(Author/AS)

Home movies of eight normal children and eight children later diagnosed as autistic were analyzed based on: (1) Piagetian criteria of sensorimotor development and semiotic functioning, and (2) developmental levels of action competencies. The age range covered was 4 to 42 months of age. The analysis showed that, from the second year of life, timing…