Pre-onset relational investments and dementia caregiver wellbeing: Comparing theorizing from the investment model and the theory of resilience and relational load

Dementia alters relationships between family caregivers and their relatives living with dementia. Drawing from the theory of resilience and relational load (TRRL) and the investment model, this study assesses the influence of dementia caregivers’ pre-onset relational investments in these relationships (relationship maintenance and communal orientation) on their individual and relational wellbeing (depression, personal growth, love/closeness). Two mediating mechanisms (relational deprivation, ongoing relationship maintenance) were examined, and disease severity was tested as a moderator. Using surveys from 454 dementia family caregivers (majority adult child and spousal caregivers), analysis revealed that pre-onset relational investments generally support caregiver wellbeing through ongoing relationship maintenance as a mediator. Disease severity moderated these associations. Findings are discussed in light of TRRL and investment model theorizing.