This study extends the previous literature by identifying different subtypes of language disability within learning disabled children. Results indicate that six language subtypes can be derived and that they are both internally consistent and externally valid, being differentially linked to reading and math achievement over a three-year period.…

An experiment was designed to compare the speed with which normal and disabled readers in two age groups retrieved semantic information from memory. Results indicate that disabled readers need more time to retrieve categorical information from memory than normal readers. (Author/LMO)

Three studies of language comprehension skills compared 9- and 10-year-old learning-disabled children (LDC) with difficulty retaining verbal information (n=8) with LDC with normal memory spans (n=8) and normally achieving children (n=16). LDC did not have significant impairments in listening comprehension. However, LDC may experience difficulties…

The first study investigates the validity of the Preschool Language Assessment Instrument as a diagnostic tool for differenciating the ability of language impaired preschoolers to use language to communicate complex ideas. The second study evaluates the relative effectiveness of two software environments that were expected to enhance children's…