This study reexamines factor analyses from which A. J. Ayres claimed to have identified perceptual-motor factors found in the scores of children with learning disabilities but not normally learning children. The reappraisal finds no support for the claim, and as a result, no support for derived diagnostic procedures or remedial programs.…

Assessment of 60 children (ages 9-15) with learning disabilities resulted in a group with relatively intact visual planning and mental flexibility skills and a group clearly dysfunctional in these areas. Comparison of the two subtypes on measures of academic skills, visual memory, visual-motor integration, and motor speed indicated significant…