Abstract

Modal Profile Analysis was used to cluster subjects on the clinical scales of the Luria-Nebraska Neuropsychological Battery, Form I (LNNB). The analysis produced 22 modal profile types, of which seven were replicated in multiple samples of subjects with single criterion diagnoses. Subjects who had been assigned to modal types according to their correlations with the modal profiles were more similar to the modal profile of their assigned groups than to other modal profiles. Assigned subjects were more likely to belong to their assigned group than to other groups and were more similar to other subjects who had been assigned to the same group than to subjects assigned to other groups. Eighty-two percent of subjects in the derivation sample were assigned empirically to a modal profile group; 77% of subjects in a cross-validation sample were assigned to a modal profile group. The discussion focuses on the potential research and clinical use of the modal LNNB profiles.

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