Measuring well-being among Spanish older adults: development of a simplified version of Ryff's Scales of Psychological Well-being.

Two studies were designed to develop and obtain information about the psychometric properties of a shortened 54-item, Spanish version of Ryff's Scales of Psychological Well-being adapted to older people. In Study 1, 267 older people completed the scales, and data were submitted to a principal components analysis. Then, 22 items were selected and grouped into four components (Self-confidence, Orientation to present, Stress, and Social tension) to form the Simplified Ryff's Well-being Scales. In Study 2, the new scales were administered to 107 older people. While internal consistency estimates were similar to those generally obtained for the 54-item scale, results extracted from a confirmatory factor analysis did not support any factorial model. Although the simplified scales can distinguish between conceptually different approaches to well-being, further studies are needed to obtain estimates of reliability and validity.