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Measuring (Non)Essentialist Beliefs About the Process of Aging.

ABSTRACT:

Objectives

We validated an aging mindset measure that captures beliefs about the process of aging. Specifically, we introduce a brief 4-item and an extended 10-item measure assessing (non)essentialist beliefs about aging.

Methods

We report findings from one longitudinal and one cross-cultural study, including young, middle-aged, and older adults between 18 and 88 years. The studies established (retest) reliability and measurement invariance as well as convergent and discriminant validity of the measures.

Results

First, in a longitudinal study (N = 124, 50-84 years) including 4 measurement occasions, we showed that the 4-item scale assessing (non)essentialist beliefs about aging has good retest reliability and convergent as well as discriminant validity (e.g., awareness of age-related change). Second, in a large cross-cultural sample (N = 1,080, 18-82 years) of participants in the United States and Germany, we established an extended 10-item measure of (non)essentialist beliefs about aging, providing support for a 2-factor structure as well as measurement invariance across samples within and across countries (the United States and Germany), age groups (young, middle-aged, and older adults), as well as across men and women.

Discussion

Our results highlight the importance of distinguishing between fixed versus malleable aging beliefs in research on aging and life-span development.

SUBMITTER: Weiss D

PROVIDER: S-EPMC8499443 | biostudies-literature |

REPOSITORIES: biostudies-literature

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