Conceptualization and measurement of getting lost behavior in persons with early dementia

Background The primary purpose of this preliminary research was to describe the psychometric properties of a newly‐developed Everyday Spatial Questionnaire for Dementia‐patient version (ESQD‐P) in a Chinese population. A secondary goal was to assess the relationship between executive functions and w...

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Bibliographic Details
Published in:International journal of geriatric psychiatry 2005-08, Vol.20 (8), p.760-768
Main Authors: Chiu, Yi-Chen, Algase, Donna, Liang, Jersey, Liu, Hsiu-Chih, Lin, Ker-Nan
Format: Article
Language:English
Subjects:
Aged
Alzheimer's disease
Behavior
Biological and medical sciences
Cognition
Cognition & reasoning
Confusion - psychology
Cross-Sectional Studies
Degenerative and inherited degenerative diseases of the nervous system. Leukodystrophies. Prion diseases
Dementia
Dementia - epidemiology
Dementia - psychology
Everyday Spatial Questionnaire for Dementia
executive functions
Female
Fundamental and applied biological sciences. Psychology
Geriatric psychiatry
Geriatrics
getting lost behavior
Humans
Male
Medical sciences
Neurology
Neuropsychological Tests
Orientation
Psychiatric Status Rating Scales
Psychoanalysis
Psychological tests
Psychology. Psychoanalysis. Psychiatry
Psychometrics
Psychopathology. Psychiatry
Reproducibility of Results
Surveys and Questionnaires
Taiwan - epidemiology
wayfinding strategies
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Summary:Background The primary purpose of this preliminary research was to describe the psychometric properties of a newly‐developed Everyday Spatial Questionnaire for Dementia‐patient version (ESQD‐P) in a Chinese population. A secondary goal was to assess the relationship between executive functions and wayfinding strategy application. The ESQD‐P is a measure for the phenomenon of ‘getting lost behavior’ (GLB) reported by early Alzheimer's disease sufferers, based on the concept of spatial problem‐solving. Methods With a cross‐sectional descriptive design, the ESQD‐P was validated by examining for internal consistency, construct validity, concurrent validity, and exploratory factor analyses among 116 outpatients in the memory disorder clinic of a veterans' general hospital in Taiwan. Other variables included were: global cognition, measured by the Cognitive Abilities Screening Instrument; stages of dementia, measured by the Clinical Dementia Rating Scale; and depressive symptoms, measured by the Geriatric Depression Scale‐Short Form. Results Findings indicated that the Chinese ESQD‐P is a reliable instrument for measuring GLB (internal consistency α = 0.73). A five‐factor solution explained 55.45% of the score variance, while the correlations between the patient and proxy versions of this instrument yielded an acceptable concurrent validity. Executive functions can predict both global and analytic wayfinding strategies. Conclusions GLB may be explained in part by declining executive functions. Deleting the coping strategies subscale may improve psychometric properties of the ESQD‐P. Copyright © 2005 John Wiley & Sons, Ltd.
ISSN:0885-6230
1099-1166
DOI:10.1002/gps.1356