Psychometric Properties of the High-Need Community-Dwelling Older Adults Screening Scale

Abstract

This study aimed to verify the factorial structure, internal consistency, test-retest reliability, and discriminant validity of the High-need Community-dwelling Older Adults Screening Scale (HCOASS). A 20-item HCOASS covering five domains was used with a systematic random sample of 818 community-dwelling older adults. After the analyses, the Exploratory Factor Analysis suggested a removal of two items, resulting in 5 domains with 18 items, and the Confirmatory Factor Analysis yielded satisfactory results with Goodness of Fit Index of .98. The HCOASS demonstrated acceptable internal consistency (Kuder-Richardson Formula 20 α = .75) and excellent test-retest reliability (0.94; 95% CI [0.91, 0.97]). The area under the Receiver Operating Characteristic (ROC) curve was 0.90 (95% CI [0.84, 0.95]) and the optimal cut-off score was 4/5. The HCOASS is a valid and reliable screening tool. It has the potential for consistent and efficient administration to be used by non-healthcare professionals in the community.

Keywords

community discriminant validity high need older adults reliability

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