The construct validity of life satisfaction among the elderly

Area of Science:

• Gerontology
• Psychology
• Sociology

Background:

• Life satisfaction is a key indicator of well-being in older adults.
• Validating measurement tools is crucial for accurate research in aging.
• Understanding factors influencing life satisfaction, such as disability, is important.

Purpose of the Study:

• To conduct a construct validation of life satisfaction measures in an older adult population.
• To assess the reliability and validity of specific life satisfaction scales.
• To examine differences in life satisfaction between handicapped and non-handicapped older adults.

Main Methods:

• A modified random area probability sample of 325 older persons (mean age = 73.0) in the Phoenix metropolitan area was used.
• Internal consistency reliability was estimated for the Life Satisfaction Index Form Z and Affect Balance Scale.
• Convergent-discriminant validity was assessed by examining correlations between life satisfaction measures and an alcohol use measure.

Main Results:

• Reliability estimates for the scales were consistent with previous findings.
• Life satisfaction measures demonstrated adequate convergent-discriminant validity, correlating more highly with each other than with alcohol use.
• The handicapped group reported significantly lower life satisfaction than the non-handicapped group.

Conclusions:

• The studied life satisfaction measures are reliable and valid for use with older adults.
• Disability status is associated with lower life satisfaction in older persons.
• Some redundancy exists among the life satisfaction measures, suggesting potential for scale refinement.