The profile elevation scale and the impairment scale: two new summary scales for the Luria-Nebraska Neuropsychological Battery.

Two new clinical summary scales have been developed for the Luria-Nebraska Neuropsychological Battery. The scales were constructed in a derivation/ crossvalidation design with a sample of 459 mixed brain impaired patients and 135 non-brain impaired persons. Preliminary evidence suggests that the Profile Elevation scale and the Impairment scale are psychometrically viable, produce additional information to what is offered by the current clinical summary scales, and deserve further investigation. Interpretations are suggested for the two new scales and supported by two neurosurgical case examples. The scales are also expected to offer the possibility of quick screening devices.