International relevance of two measures of awareness of age-related change (AARC).

ABSTRACT:

Background

A questionnaire assessing awareness of positive and negative age-related changes (AARC gains and losses) was developed in the US and Germany. We validated the short form of the measure (AARC-10 SF) and the cognitive functioning subscale from the 50-item version of the AARC (AARC-50) questionnaire in the UK population aged 50 and over.

Methods

Data from 9410 participants (Mean (SD) age = 65.9 (7.1)) in the PROTECT cohort were used to explore and confirm the psychometric properties of the AARC measures including: validity of the factor structure; reliability; measurement invariance across men and women, individuals with and without a university degree, and in middle age, early old age, and advanced old age; and convergent validity with measures of self-perception of

SUBMITTER: Sabatini S 

PROVIDER: S-EPMC7507664 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature