Modal profiles for the Halstead-Reitan neuropsychological battery

Abstract

Modal profile analysis was used to cluster subjects on 11 scores from the Halstead-Reitan Neuropsychological Battery. The final analysis produced 18 modal profile types, of which 12 were replicated in multiple samples of subjects with differing clinical diagnoses. Subjects who had been assigned to modal types according to their correlations with the modal profiles were more similar to the centroid of their assigned groups than to the centroids of all other groups. Assigned subjects were eight times more likely to belong to their assigned groups than to any of the other groups. Fifty-four percent of subjects were assigned to a modal profile group according to the adopted similarity rule. Discussion includes a comparison of the present typology with a similar typology of Luria-Nebraska Neuropsychological Battery profiles.

Modal profiles for the WISC-III.

“…After the initial classification, the MAXR criterion was reduced from 0.65 to 0.60 to assess the impact on coverage that a more relaxed classification rule would have. Although the use of MAXR ≥ 0.65 to classify participant profiles is arbitrary, it has been found to be useful in other applications of MPA (Livingston et al 1997; Moses et al, 1994; Moses & Pritchard, 1995; Moses, Pritchard, & Adams, 1996; 1997). In general, a more stringent classification rule (e.g., MAXR ≥ 0.80) would classify fewer people into one of the final modal profile groups and a less stringent classification rule (e.g., MAXR ≥ 0.60) would classify more people into one of the final modal profile groups.…”