Robust norms for selected neuropsychological tests in older adults

Roee Holtzer, Yelena Goldin, Molly Zimmerman, Mindy Katz, Herman Buschke, Richard B. Lipton

Research output: Contribution to journalArticle

57 Scopus citations

Abstract

The current study provided longitudinal robust norms for individuals age 70 years and older for several neuropsychological tests. We compared baseline neuropsychological test performance in three groups free of dementia at baseline: a robust normative sample free of dementia for at least two post-follow-up assessments, an incident dementia sample which developed new onset dementia during the follow-up and a lost to follow-up (LTF) sample. ANCOVAs showed that the robust sample performed better on all neuropsychological tests compared to the incident dementia and LTF samples. These findings support the argument that individuals in transition to developing dementia may reduce the mean, increase the variability and therefore underestimate cognitive performance in normal aging. We suggest that longitudinal robust norms may help mitigate the limitations inherent in cross-sectional normative samples.

Original languageEnglish (US)
Pages (from-to)531-541
Number of pages11
JournalArchives of Clinical Neuropsychology
Volume23
Issue number5
DOIs
StatePublished - Sep 1 2008

Keywords

  • Aging
  • Attrition
  • Dementia
  • Norms

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Clinical Psychology
  • Psychiatry and Mental health

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