Sensitivity and specificity of the Neuropsychological Impairment Scale (NIS)

Evaluated the sensitivity and specificity of the Neuropsychological Impairment Scale (NIS) using the Halstead Impairment Index as the criterion (N = 41). Acceptable values are achieved by both NIS and Trailmaking Tests when used separately. When used "in parallel," higher classification rates are achieved. This combination of the NIS, a neuropsychological symptom self-report measure, in combination with a performance task ( Trailmaking Tests) permits observation of behavioral deficit while it provides additional symptom information with which to pursue more extensive inquiry.