Developmental and criterion reading and writing measures were administered to 300 primary-level students, revealing that elimination of IQ in the definition of learning disabilities would dramatically affect who is identified as learning disabled. A two-stage assessment model analyzing absolute criteria without IQ and relative criteria with IQ is…

Research on reading has tried, and failed, to account for wide disparities in reading skill even among children taught by the same method. Why do some children learn to read easily and quickly while others, in the same classroom and taught by the same teacher, don't learn to read at all? In "Language Development and Learning to Read", Diane…