Development of the Cognitive Dysfunction Questionnaire (CDQ) in a population based sample
2011
Online
Elektronische Ressource
The study reports on the development of a questionnaire for assessment of adult cognitive dysfunction (CDQ). Participants in a population-based sample (65 +/- 15 years, N = 370) responded to a 90-item pilot version covering multiple aspects of memory/cognition. Based on exploratory principal components analyses and correlations with criterion measures of cognitive functioning (MMSE, Block Design, semantic/episodic memory), 20 items loading on 6 components were selected for the final version of the questionnaire. Cronbach's alpha for the total score was 0.90. There was evidence of construct validity as judged by correlations between CDQ scores, objective cognitive measures, and a subjective memory measure (PRMQ). Discriminant validity was demonstrated by a low and non-significant correlation with depressive symptoms. Further evidence of construct validity was provided by correlations with age and educational attainment. In conclusion, the CDQ is promising as a self-rating screening tool for cognitive dysfunction, and will be the subject of further development and validation.
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Development of the Cognitive Dysfunction Questionnaire (CDQ) in a population based sample
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Veröffentlichung: | 2011 |
Medientyp: | Elektronische Ressource |
DOI: | 10.1111.j.1467-9450.2010.00861.x |
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