ArticlePatient preference and adherence2026
Preliminary Psychometric Evidence of an Integrated Life Autonomy and Coherence Measure (LAC-Scale) in Community-Dwelling Adults.
Article in Patient preference and adherence, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Life autonomy and coherence have been recognized as essential psychological resources that contribute to overall functioning and quality of life (QOL). However, there is a dearth of validated measures on life autonomy and coherence in the literature, especially a culturally appropriate measure in East Asian contexts (eg, Taiwan). This study provides preliminary psychometric evidence for the Life Autonomy and Coherence Scale (LAC-Scale) in community-dwelling adults. Specifically, the present study aimed to develop the LAC-Scale and evaluate its initial psychometric properties. Methods: The LAC-Scale was first developed using literature review, expert panel committee, and pilot testing; a 25-item LAC-Scale was then generated. Then, a total of 305 community-dwelling adults participated in the study (mean age = 44.47 years, SD = 18.20). The sample was predominantly female (68.20%) and highly educated, with 77.70% of participants having completed a college-level education or above. The sample consisted predominantly of highly educated adults and was primarily female. Participants completed the LAC-Scale and external measures on QOL, physical resilience, and health literacy. Exploratory factor analysis (EFA) was used to examine the factorial structure of the LAC-Scale. Internal consistency, item-total correlations, and concurrent validity (with external measures) of the LAC-Scale were evaluated as well. Results: EFA results indicated a two-factor structure comprising "Life Autonomy and Daily Coherence" and "Life Meaning and Social Connectedness". Four items with factor loadings below 0.50 were deleted, resulting in a final 21-item scale. Both factors demonstrated excellent internal consistency (α and ω = 0.96-0.98). Significant associations were observed between LAC-Scale scores and external measures (r=0.31 to 0.55), supporting concurrent validity. Conclusion: The present study provides preliminary psychometric evidence supporting a two-factor structure of the LAC-Scale and high internal consistency across the scale and its subscales. The LAC-Scale may help identify individuals with lower autonomy and coherence who could benefit from targeted interventions. Further confirmatory factor analysis and longitudinal validation studies are warranted.
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