Prediction of Intelligence with the Luria-Nebraska Neuropsychological Battery

Abstract

Correlations between scores on the Intellectual Processes Subscale of the Luria-Nebraska Neuropsychological Battery and IQs from the Wechsler Adult Intelligence Scale were studied in a group of 81 men and women who covered a broad age range and were free of psychiatric or neurological impairments. The correlations were compared to those reported in other studies based upon hospitalized patients. Regression formulas developed in this study were also compared to regression formulas based on responses of hospitalized patients. The ability of previous regression formulas to predict the IQs of the present subjects was examined. The comparative accuracy of multiple regression formulas, using optimum combinations of Luria-Nebraska subscales, and univariate regression formulas, using only the Intellectual Processes subscale, in the prediction of IQs indicated that the Luria-Nebraska Intellectual Processes subscale works differently for hospitalized patients than unimpaired subjects. The accuracy of univariate and multivariate regression formulas was not appreciably different.