Development of the cognitive dysfunction questionnaire (CDQ) in a population based sample
2011 (English)In: Scandinavian Journal of Psychology, ISSN 0036-5564, E-ISSN 1467-9450, Vol. 52, no 3, 218-228 p.Article in journal (Refereed) Published
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 a 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.
Place, publisher, year, edition, pages
Stockholm: Almqvist & Wiksell , 2011. Vol. 52, no 3, 218-228 p.
Questionnaire development, subjective memory, self-report measures, cognitive functioning, cognitive dysfunction, cognitive impairment.
Psychology Other Social Sciences not elsewhere specified
Research subject Psychology; didactics of educational measurement
IdentifiersURN: urn:nbn:se:umu:diva-38304DOI: 10.1111/j.1467-9450.2010.00861.xOAI: oai:DiVA.org:umu-38304DiVA: diva2:374271