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The Gerontologist 45:240-248 (2005)
© 2005 The Gerontological Society of America

Development of the 12-Item Expectations Regarding Aging Survey

Catherine A. Sarkisian, MD, MSPH1,, W. Neil Steers, PhD2, Ron D. Hays, PhD2 and Carol M. Mangione, MD, MSPH2

Correspondence: Address correspondence to Catherine A. Sarkisian MD, MSPH, UCLA Department of Medicine, Division of Geriatrics, 10945 Le Conte Avenue, Suite 2339, Los Angeles, CA 90095-1687. E-mail: csarkisian{at}mednet.ucla.edu

Purpose: This study describes the development of a short version of the Expectations Regarding Aging Survey (ERA-38), a 38-item survey measuring expectations regarding aging. Design and Methods: In 1999, surveys containing the ERA-38 were mailed to 588 adults aged ≥ 65 years who were recruited through physicians; 429 individuals (73%) returned completed surveys. The mean age of participants was 77 years; 76% were White. In 2001, we surveyed 643 adults aged ≥ 65 years recruited at 14 senior centers. The mean age of participants was 78 years; 37% were Latino and 16% were African American. With the 1999 data, we selected items for the shorter version of the ERA-38 by using qualitative criteria and by evaluating the items' factor structure, internal consistency reliability of scales, and correlations with age and self-reported measures of health. Then, using the 2001 data, we evaluated the selected items with confirmatory factor analysis, and we reevaluated the internal consistency reliability and associations of the scales with age and self-reported measures of health. Results: The factor analyses of the ERA-12 on both samples provided support for three 4-item scales (expectations regarding physical health, expectations regarding mental health, and expectations regarding cognitive function), and one global expectations regarding aging scale combining all 12 items. In both samples, internal consistency reliability estimates for all scales exceeded 0.74, and the 12 items together explained over 88% of the variance in the ERA-38 total score. We found comparable associations of the ERA-12 scales with age and self-reported health measures in both samples. Implications: The ERA-12 demonstrated acceptable reliability and validity to estimate expectations regarding aging.

Key Words: Measurement • Psychometrics • Factor analysis • Behavioral science • Attitudes toward health






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