Correlation of Frostig visual perception scores and verbal IQs among epileptic children

In a large study of the visual-perceptual deficits of epileptic children both Frostig's Developmental Test of Visual Perception and the verbal part of the German version of the WISC were administered. All WISC subtests correlated significantly with the Frostig Perceptual Quotients. Verbal IQs correlated significantly with scaled scores of all the Frostig subtests. From the results of this pilot study it was suggested that intellectual abilities of epileptic children as measured by the verbal WISC and visual perception as measured by the Frostig are both influenced by the same contingencies.