title: IQ-based norms for highly intelligent adults.
abstract: 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.
authors.affiliation: Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. drentz@partners.org
authors.forename: Dorene M
authors.initials: DM
authors.lastname: Rentz
authors.forename: Lisa M
authors.initials: LM
authors.lastname: Sardinha
authors.forename: Terri J
authors.initials: TJ
authors.lastname: Huh
authors.forename: Meghan M
authors.initials: MM
authors.lastname: Searl
authors.forename: Kirk R
authors.initials: KR
authors.lastname: Daffner
authors.forename: Reisa A
authors.initials: RA
authors.lastname: Sperling
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D003071:Cognition / Q000502:physiology*; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests / Q000592:standards*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009483:Neuropsychological Tests / Q000706:statistics & numerical data; D011237:Predictive Value of Tests; D012015:Reference Standards; D012016:Reference Values; D012737:Sex Factors