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A psychometric evaluation of dementia rating scales

Published online by Cambridge University Press:  16 April 2020

A Kørner ,
L Lauritzen  and
P Bech
A Kørner
Affiliation:
Psychiatric Department, Frederiksborg General Hospital, Dyrehavevej 48, DK-3400 Hillerød, Denmark
L Lauritzen
Affiliation:
Psychiatric Department, Frederiksborg General Hospital, Dyrehavevej 48, DK-3400 Hillerød, Denmark
P Bech
Affiliation:
Psychiatric Department, Frederiksborg General Hospital, Dyrehavevej 48, DK-3400 Hillerød, Denmark
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Summary

The paper discusses the relevance of sufficient psychometric standards for dementia rating scales. The concurrent, convergent and construct validity of the Mini Mental State Examination (MMSE), the Alzheimer's Disease Assessment Scale (ADAS) and the CAMCOG are assessed. The Clinical Global Impressions and the Global Deterioration Scale are used as global scales. The concurrent and convergent validity are satisfactory. The construct validity expressed by the Cronbach and Loevinger coefficient are very good for all scales and subscales. The Mokken's single item coefficients show that the MMSE has the best individual hierarchical fit, the item reading can be left out. The ADAS is less uni-dimensional, eight items can be left out. The CAMCOG consists of too many items to apply the Mokken's single item coefficients or the Loevinger coefficient. Instead, the CAMCOG subscales are analyzed. This results in a possible reduction of the CAMCOG by 30 items to a total of 35 items. The factor analysis reveals two factors in both the MMSE and the ADAS while the number of observations does not allow a factor analysis of the CAMCOG to be performed.

Keywords

dementiarating scalesconvergent validityconcurrent validityconstruct validity
Type
Original article
Information
European Psychiatry , Volume 11 , Issue 4 , 1996 , pp. 185 - 191
Copyright
Copyright © Elsevier, Paris 1996

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References

American Psychiatric Association Diagnostic and Statistical Manual of Mental Disorders Third Edition revised version (DSM-III-R) American Psychiatric Association Washington DC 1987Google Scholar
Bartko, JJ, Carpenter, WTOn the methods and theory of reliability J Nerv Ment Dis 163 1976 307–317CrossRefGoogle ScholarPubMed
Bech, PRating Scales for Psychopathology, Health Status and Quality of Life BerlinSpringer Verlag 1993CrossRefGoogle Scholar
Bech, PThe Bech, Hamilton and Zung Scales for Mood Disorders: Screening and Listening BerlinSpringer Verlag 1995CrossRefGoogle Scholar
Child, DThe Essentials of Factor Analysis LondonCassell 1990Google Scholar
Cronbach, LJCoefficient alpha and the internal structure of tests Psychometrika 16 1951 297–334CrossRefGoogle Scholar
Folstein, MF, Folstein, SE, McHugh, PRMini-Mental State. A practical method for grading the cognitive state of patients for the clinicians J Psychiatr Res 12 1975 189–198CrossRefGoogle Scholar
Guy, WECDEV Assessment Manual for Psycho-pharmacology (Revised) Rockville MDNational Institute of Mental Health, Psychopharmacology Revised Branch 1976Google Scholar
Lauritzen, L, Kømer, A, Bech, PA comparison between psychogeriatric rating scales. Interrater reliability and validityBergener, M, Finkel, SITreating Alzheimer's and other Dementias New YorkSpringer Publishing Corporation Inc 1995 269–276Google Scholar
Loevinger, JThe technique of homogenous tests compared with some aspects of scale analysis and factor analysis Psychol Bull 45 1948 507–529CrossRefGoogle Scholar
Marcos, T, Salamero, MFactor study of the Hamilton Rating Scale for Depression and the Bech Melancholia Scale Acta Psychiatr Scand 82 1990 178–181CrossRefGoogle ScholarPubMed
Mohs, RC, Cihen, LAlzheimer's disease assessment scale (ADAS) Psychopharmacol Bull 24 1988 627–628Google Scholar
Mokken, RJA Theory and Procedure of Scale Analysis with Applications in Political Research BerlinMouton 1971CrossRefGoogle Scholar
Reisberg, B, Ferris, SH, Anand, Ret alFunctional staging of dementia of the Alzheimer's type Am NY Acad Sci 435 1984 481–483CrossRefGoogle Scholar
Reisberg, B, Ferris, SH, de, Leon MJ, Crook, TThe Global Deterioration Scale for Assessment of Primary Degenerative Dementia Am J Psychiatr 139 1982 1136–1139Google ScholarPubMed
Roth, M, Tym, E, Mountjoy, CQ, Huppat, SA, Hendrie, HA standardized instrument for the diagnosis of mental disorders in the elderly with special reference to the early detection of dementia Br J Psychiatr 149 1986 698–709CrossRefGoogle Scholar
Siegel, SNon-parametric Statistics New YorkMcGraw-Hill 1956Google Scholar
World Health Organization The ICD-10 Classification of Mental and Behavioural Disorders GenevaWorld Health Organization 1993Google Scholar
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