Neuropsychological clusters within intelligence levels for learning disabled children.

The present study assessed 1142 learning disabled children with the Halstead Reitan Neuropsychological Battery and the Wechsler Intelligence Scale for Children-Revised. Subjects were divided into four groups based upon Full Scale IQ (i.e., 70-79; 80-89; 90-99 and 100-110). Subsequent clustering of the test data within each group suggested that while the students in the 70-79 IQ range were represented by a single Impaired Cluster, each of the other IQ groups had both an Impaired Cluster and a Non-Impaired Cluster.