Development and Psychometric Validation of the Dementia Attitudes Scale

Abstract EN

This study employed qualitative construct mapping and factor analysis to construct a scale to measure attitudes toward dementia.

Five family caregivers, five professionals, and five college students participated in structured interviews.

Qualitative analysis of the interviews led to a 46-item scale, which was reduced to 20 items following principal axis factoring with two different samples: college students (N=302) and certified nursing assistant students (N=145).

Confirmatory factor analysis was then conducted with another sample of college students (N=157).

The final scale, titled the Dementia Attitudes Scale (DAS), essentially had a two-factor structure; the factors were labeled “dementia knowledge” and “social comfort.” Total-scale Cronbach's alphas ranged 0.83–0.85.

Evidence for convergent validity was promising, as the DAS correlated significantly with scales that measured ageism and attitudes toward disabilities (range of correlations = 0.44–0.55; mean correlation =0.50).

These findings demonstrate the reliability and validity of the DAS, supporting its use as a research tool.