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IQ-based norms for highly intelligent adults.

Rentz DM, Sardinha LM, Huh TJ, Searl MM, Daffner KR, Sperling RA

Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. drentz@partners.org

This study presents normative data of commonly used neuropsychological tests administered to 75 individuals with high levels of intelligence (estimated IQ > or = 120). Participants were living independently in the community with ages ranging from 44 to 86. To avoid including individuals with an incipient dementia, we selected subjects who scored within the normal range on all cognitive tests for at least a two-year period. The norms are presented in table format to help clinicians easily identify a typical cognitive performance in highly intelligent individuals and to provide a useful guide for detecting abnormal cognitive decline in individuals at risk for progressive dementia.

Published 18 September 2006 in Clin Neuropsychol, 20(4): 637-48.
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