000286735 001__ 286735 000286735 005__ 20240301121555.0 000286735 0247_ $$2doi$$a10.3233/JAD-230961 000286735 0247_ $$2pmid$$apmid:38189757 000286735 0247_ $$2ISSN$$a1387-2877 000286735 0247_ $$2ISSN$$a1875-8908 000286735 037__ $$aDKFZ-2024-00074 000286735 041__ $$aEnglish 000286735 082__ $$a610 000286735 1001_ $$aAngelidou, Ioanna Antigoni$$b0 000286735 245__ $$aValidation of the 'Perceptions Regarding pRE-Symptomatic Alzheimer's Disease Screening' (PRE-ADS) Questionnaire in the German Population: Attitudes, Motivations, and Barriers to Pre-Symptomatic Dementia Screening. 000286735 260__ $$aAmsterdam$$bIOS Press$$c2024 000286735 3367_ $$2DRIVER$$aarticle 000286735 3367_ $$2DataCite$$aOutput Types/Journal article 000286735 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1704812495_20277 000286735 3367_ $$2BibTeX$$aARTICLE 000286735 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000286735 3367_ $$00$$2EndNote$$aJournal Article 000286735 520__ $$aAttitudes, motivations, and barriers to pre-symptomatic screening for Alzheimer's disease (AD) in the general population are unclear, and validated measurement tools are lacking.Translation and validation of the German version of the 'Perceptions regarding pRE-symptomatic Alzheimer's Disease Screening' (PRE-ADS) questionnaire.A convenience sample (N = 256) was recruited via an online platform. Validation of the PRE-ADS-D consisted of assessments of reliability, structural validity using Principal Component Analysis (PCA) and Exploratory Factor Analysis (EFA) and construct validity using known-group tests. A subscale 'Acceptability of Screening', with 5 PRE-ADS-D items, was extracted to measure acceptance of screening in clinical practice. The STROBE checklist was used for reporting.EFA revealed a three-factor model for the PRE-ADS-D. Acceptable to good internal consistency was found for the 25-item scale (α= 0.78), as well as for the three factors 'Concerns about Screening' (α= 0.85), 'Intention to be Screened' (α= 0.87), and 'Preventive Health Behaviors' (α= 0.81). Construct validity was confirmed for both the 25-item PRE-ADS-D and the 'Acceptability of Screening' scale (α= 0.91). Overall, 51.2% of the participants showed a preference for screening. Non-parametric tests were conducted to further explore group differences of the sample.The PRE-ADS-D is a reliable and valid tool to measure attitudes, motives, and barriers regarding pre-symptomatic dementia screening in the German-speaking general population. 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