Sensory integration and learning disabilities: Ayres' factor analyses reappraised.

Between 1965 and 1987 Ayres published eight papers that contain among them 10 multivariate analyses that bear upon her conception of sensory integration. These analyses purport to have identified factors that emerge from the scores of children with learning disabilities but not from the scores of academically nondisabled children. A reappraisal of these analyses in combination finds no support for this claim. As a consequence, these data provide no validity for either the diagnostic procedures or the remedial programs for children with learning disabilities that have been derived from this work.