The Clock Reading Test: validation of an instrument for the diagnosis of dementia and disorders of visuo-spatial cognition

• Published in: International psychogeriatrics Vol. 19; no. 2; pp. 307 - 321
• Main Authors: Schmidtke, Klaus, Olbrich, Susanne
• Format: Journal Article
• Language: English
• Published: Cambridge, UK Cambridge University Press 01.04.2007; Elsevier Inc
• Subjects: Adult and adolescent clinical studies; Aged; Alzheimer's disease; Biological and medical sciences; Clock Drawing Test; Cognition & reasoning; Cognition Disorders - diagnosis; Cognition Disorders - epidemiology; Cognitive ability; Degenerative and inherited degenerative diseases of the nervous system. Leukodystrophies. Prion diseases; Dementia; Dementia - epidemiology; diagnosis; Female; Geriatrics; Humans; Male; Medical diagnosis; Medical sciences; Middle Aged; Neurology; Neuropsychological Tests; neuropsychology; Organic mental disorders. Neuropsychology; Perceptual Disorders - diagnosis; Perceptual Disorders - epidemiology; Psychology. Psychoanalysis. Psychiatry; Psychopathology. Psychiatry; Reproducibility of Results; Severity of Illness Index; Space Perception - physiology; Time Perception; Visual Perception - physiology; Clock Drawing Test; neuropsychology; dementia; diagnosis; Alzheimer's disease; Human; Nervous system diseases; Alzheimer disease; Spatial cognition; Neuropsychological test; Psychometrics; Space perception; Cerebral disorder; Senile dementia; Test validation; Reading; Language; Central nervous system disease; Degenerative disease; Diagnosis; Neuropsychologia; Elderly

Background: The 12-item Clock Reading Test (CRT) allows a fine-graded assessment of clock-reading ability. It has a strong focus on visuo-spatial processing and requires no executive processing. This study evaluated the reliability, validity, sensitivity and specificity of the CRT for the diagnosis...