This study attempted to determine whether a combination of seriation and classification training would produce more general intellectual gains. (Author/SB)

Results showed that both groups of children used a sequential rather than a logical order as a guide in answering questions, and that there was no indication that sighted children used a strategy of spatial coding. (Authors)

Through seriation, verbal seriation, and conservation tasks, investigated blind, partially sighted, and sighted children's understanding of quantity. Subjects were 81 children equally dispersed through these 3 groups. Age range was 4 to 17 years. Found similarity in concept acquisition among three groups that extended beyond quantity conservation…