Described are the history of the study of language disabilities, briefly outlining the work of Samuel Orton, Judson Herrick, Adolph Meyer, and Paul Schilder; Lauretta Bender's development of the Bender Visual Motor Gestalt Test; and the basic principles of language disorders, including familial patterns, maturation lag, plasticity, and nonfixated…

A series of studies with adults resulted in a standardized test to assess children's comprehension of main ideas in simple narratives. The test, utilizing stories from the WISC-R picture arrangement task, was then employed in a developmental investigation with second, fifth, and eighth grade students. Each student completed the WISC-R arrangement…