CROSS-VALIDATION OF REITAN AND WOLFSON NEUROPSYCHOLOGICAL DEFICIT SCALES

Reitan and Wolfson developed and presented validity data on their Neur opsychological Deficit Scales and offered them as alternatives to Hals tead's Impairment Index and Russell, Neuringer, and Goldstein's Averag e Impairment Rating. An initial cross-validation study of the scales w as conducted with 73 brain-damaged subjects and 41 pseudoneurologic co ntrols. Brain-damaged and pseudoneurologic subjects differed on the Ge neral Neuropsychological Deficit Scale. Groups of left hemisphere, dif fuse, and right hemisphere brain-damaged subjects differed on the Left and Right Neuropsychological Deficit Scales. The General Neuropsychol ogical Deficit Scale, Impairment Index, and Average Impairment Rating did not differ in ''curacy of subject classification. Our findings pro vide limited support for the validity of these new scales with patient s commonly seen in clinical practice.