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Validation of the Oxford Cognitive Screen‐Plus: Tablet‐based cognitive testing in patients with amnestic mild cognitive impairment
Author(s) -
Hübner Clara Margarethe,
Demeyere Nele,
Preul Christoph,
Finke Kathrin
Publication year - 2020
Publication title -
alzheimer's and dementia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.713
H-Index - 118
eISSN - 1552-5279
pISSN - 1552-5260
DOI - 10.1002/alz.042557
Subject(s) - dementia , anxiety , cognition , cognitive impairment , depression (economics) , clinical psychology , construct validity , psychology , audiology , cognitive test , convergent validity , psychiatry , medicine , psychometrics , economics , macroeconomics , disease , internal consistency
Background The Oxford Cognitive Screen ‐ Plus (OCS‐Plus) is a tablet‐based cognitive screen developed for detection of mild cognitive impairment in various settings. We validated it in the target group of aMCI/dementia patients. Methods Patients with aMCI (N=57) and mild dementia (N=13) were assessed with OCS‐Plus at the Jena University Hospital Memory Center. Comparison of their data with a) those of established dementia testing, third part interview and depression and anxiety questionnaire and b) with those of a demographically matched control group (N = 67) were conducted to explore construct validity and discriminatory power. Results Significant correlations of the OCS‐Plus scores with those of established assessments indicated good convergent validity, divergent validity was indicated by a lack of significant correlations with depression and anxiety scores. Among different scores, the delayed memory score demonstrated the best discriminatory power with sensitivity of .74 and specificity of .75. Conclusion The OCS‐Plus is able validly to differentiate between healthy control participants and aMCI patients and potentially to differentiate aMCI from mild dementia.