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Abstract
The consideration of patient symptoms may offer insight into the diagnosis of neurological/neuropsychological disorders. However, rarely are symptoms considered in a standardized fashion by the clinician. Although measures of symptoms exist, most lack psychometric confirmation of their utility. Two studies examined the construct validity, internal consistency, and test-retest reliability of a standardized measure of symptoms, the Neuropsychological Symptom Inventory. Study I consisted of a factor analysis of the measure for 826 normals which revealed four meaningful factors. Study II estimated the reliability of the measure. The results of this analysis showed excellent consistency and good stability over time. These data supported the utility of the Neuropsychological Symptom Inventory as a method of collecting symptom information in a standardized fashion.