Adaptation of a general optimism scale for use with older women.

The Life Orientation Test has been widely used with various populations since its development, but its psychometric properties among older adults have not been assessed. This study employed exploratory factor analysis to examine the factor structure of a modified version of the test for 90 frail older women. The results do not support a unidimensional conceptualization of optimism. Internal consistency reliability was lower for the entire scale than for separate factors representing positively versus negatively framed questions. Some support for construct validity was shown by small to moderate correlations with several related constructs. The results were likely to have been affected both by the modification of the test to simplify data collection with an elderly population and by a differing manifestation of the construct among functionally impaired older adults as compared to previous research with younger, healthier samples.