17 Citations (Scopus)

Abstract

A central role for neuropsychological evaluations is the measurement of change in cognitive functioning over time. However, change scores obtained from repeated neuropsychological assessments may be affected by normal variability because of measurement error and practice effects caused by repeated measurements. The current study uses reliable change estimates to establish normative rates of change on the Dementia Rating Scale from baseline to first follow-up testing among 1080 cognitively normal adults aged 65 and older. Results showed that a 6-point decline by European Americans or a 9-point decline by African American adults within a 9-15 month test-retest interval represents reliable change. Within a 16-24-month test-retest interval, a 7-point decline among European Americans or an 8-point decline among African American adults represents reliable change. In addition, preliminary cross-validation was performed in a clinical comparison sample of another 22 older adults. The findings are discussed in the context of potential clinical and research applications.

Original languageEnglish (US)
Pages (from-to)716-720
Number of pages5
JournalJournal of the International Neuropsychological Society
Volume13
Issue number4
DOIs
StatePublished - Jul 2007

Fingerprint

African Americans
Dementia
Research

Keywords

  • Alzheimer's disease
  • Cognitive aging
  • DRS
  • MOAANS
  • MOANS
  • RCI

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology
  • Psychiatry and Mental health
  • Neuroscience(all)
  • Psychology(all)

Cite this

@article{762783a1de774a43834b8b5b68af8cb7,
title = "Reliable change on the Dementia Rating Scale",
abstract = "A central role for neuropsychological evaluations is the measurement of change in cognitive functioning over time. However, change scores obtained from repeated neuropsychological assessments may be affected by normal variability because of measurement error and practice effects caused by repeated measurements. The current study uses reliable change estimates to establish normative rates of change on the Dementia Rating Scale from baseline to first follow-up testing among 1080 cognitively normal adults aged 65 and older. Results showed that a 6-point decline by European Americans or a 9-point decline by African American adults within a 9-15 month test-retest interval represents reliable change. Within a 16-24-month test-retest interval, a 7-point decline among European Americans or an 8-point decline among African American adults represents reliable change. In addition, preliminary cross-validation was performed in a clinical comparison sample of another 22 older adults. The findings are discussed in the context of potential clinical and research applications.",
keywords = "Alzheimer's disease, Cognitive aging, DRS, MOAANS, MOANS, RCI",
author = "Pedraza, {Otto D} and Smith, {Glenn E.} and Ivnik, {Robert J.} and Willis, {Floyd Banard} and Ferman, {Tanis Jill} and Petersen, {Ronald Carl} and {Graff Radford}, {Neill R} and Lucas, {John A}",
year = "2007",
month = "7",
doi = "10.10170S1355617707070920",
language = "English (US)",
volume = "13",
pages = "716--720",
journal = "Journal of the International Neuropsychological Society",
issn = "1355-6177",
publisher = "Cambridge University Press",
number = "4",

}

TY - JOUR

T1 - Reliable change on the Dementia Rating Scale

AU - Pedraza, Otto D

AU - Smith, Glenn E.

AU - Ivnik, Robert J.

AU - Willis, Floyd Banard

AU - Ferman, Tanis Jill

AU - Petersen, Ronald Carl

AU - Graff Radford, Neill R

AU - Lucas, John A

PY - 2007/7

Y1 - 2007/7

N2 - A central role for neuropsychological evaluations is the measurement of change in cognitive functioning over time. However, change scores obtained from repeated neuropsychological assessments may be affected by normal variability because of measurement error and practice effects caused by repeated measurements. The current study uses reliable change estimates to establish normative rates of change on the Dementia Rating Scale from baseline to first follow-up testing among 1080 cognitively normal adults aged 65 and older. Results showed that a 6-point decline by European Americans or a 9-point decline by African American adults within a 9-15 month test-retest interval represents reliable change. Within a 16-24-month test-retest interval, a 7-point decline among European Americans or an 8-point decline among African American adults represents reliable change. In addition, preliminary cross-validation was performed in a clinical comparison sample of another 22 older adults. The findings are discussed in the context of potential clinical and research applications.

AB - A central role for neuropsychological evaluations is the measurement of change in cognitive functioning over time. However, change scores obtained from repeated neuropsychological assessments may be affected by normal variability because of measurement error and practice effects caused by repeated measurements. The current study uses reliable change estimates to establish normative rates of change on the Dementia Rating Scale from baseline to first follow-up testing among 1080 cognitively normal adults aged 65 and older. Results showed that a 6-point decline by European Americans or a 9-point decline by African American adults within a 9-15 month test-retest interval represents reliable change. Within a 16-24-month test-retest interval, a 7-point decline among European Americans or an 8-point decline among African American adults represents reliable change. In addition, preliminary cross-validation was performed in a clinical comparison sample of another 22 older adults. The findings are discussed in the context of potential clinical and research applications.

KW - Alzheimer's disease

KW - Cognitive aging

KW - DRS

KW - MOAANS

KW - MOANS

KW - RCI

UR - http://www.scopus.com/inward/record.url?scp=34548420970&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548420970&partnerID=8YFLogxK

U2 - 10.10170S1355617707070920

DO - 10.10170S1355617707070920

M3 - Article

C2 - 17521486

AN - SCOPUS:34548420970

VL - 13

SP - 716

EP - 720

JO - Journal of the International Neuropsychological Society

JF - Journal of the International Neuropsychological Society

SN - 1355-6177

IS - 4

ER -