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Development, Reliability, and Validity of the Expectations Regarding Aging (ERA-38) Survey

Development, Reliability, and Validity of the Expectations Regarding Aging (ERA-38) Survey Purpose: To develop a reliable and valid instrument to measure older adults' expectations regarding aging. Design and Methods: Using focus groups, cognitive interviews, and multitrait scaling analysis, we developed a 38-item survey to measure expectations regarding aging (ERA-38). The survey consisted of 10 scales, each representing a domain of expectations. We mailed the survey to 588 English-speaking patients aged 65 years and older cared for by University of California, Los Angeles–affiliated physicians. Results: Four hundred twenty-nine participants (73%) completed the survey. The mean age was 76 years; 54% were women. Most were White (76%). All scales other than Pain demonstrated good internal consistency reliability (α ≥ .73) and item discrimination (≥.80). Sixty-eight percent of respondents stated that all or most of the ERA-38 addressed things that were important. Construct validity was supported by correlations with age, activities of daily living, the Medical Outcomes Study Short Form-12 physical and mental component scores, and the Geriatric Depression Scale. Implications: Considerable support for the reliability and construct validity of the ERA-38 was obtained in this field study of 429 older adults. This instrument should be useful to investigators interested in measuring expectations regarding aging among older adults. Key words http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Gerontologist Oxford University Press

Development, Reliability, and Validity of the Expectations Regarding Aging (ERA-38) Survey

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References (53)

Publisher
Oxford University Press
Copyright
Copyright © 2015 The Gerontological Society of America
ISSN
0016-9013
eISSN
1758-5341
DOI
10.1093/geront/42.4.534
Publisher site
See Article on Publisher Site

Abstract

Purpose: To develop a reliable and valid instrument to measure older adults' expectations regarding aging. Design and Methods: Using focus groups, cognitive interviews, and multitrait scaling analysis, we developed a 38-item survey to measure expectations regarding aging (ERA-38). The survey consisted of 10 scales, each representing a domain of expectations. We mailed the survey to 588 English-speaking patients aged 65 years and older cared for by University of California, Los Angeles–affiliated physicians. Results: Four hundred twenty-nine participants (73%) completed the survey. The mean age was 76 years; 54% were women. Most were White (76%). All scales other than Pain demonstrated good internal consistency reliability (α ≥ .73) and item discrimination (≥.80). Sixty-eight percent of respondents stated that all or most of the ERA-38 addressed things that were important. Construct validity was supported by correlations with age, activities of daily living, the Medical Outcomes Study Short Form-12 physical and mental component scores, and the Geriatric Depression Scale. Implications: Considerable support for the reliability and construct validity of the ERA-38 was obtained in this field study of 429 older adults. This instrument should be useful to investigators interested in measuring expectations regarding aging among older adults. Key words

Journal

The GerontologistOxford University Press

Published: Aug 1, 2002

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