An engaged lifestyle is seen as an important component of successful ageing. Many older adults with high participation in social and leisure activities report positive wellbeing, a fact that fuelled the original activity theory and that continues to influence researchers, theorists and practitioners. This study's purpose is to review the conceptualisation and measurement of activity among older adults and the associations reported in the gerontological literature between specific dimensions of activity and wellbeing. We searched published studies that focused on social and leisure activity and wellbeing, and found 42 studies in 44 articles published between 1995 and 2009. They reported from one to 13 activity domains, the majority reporting two or three, such as informal, formal and solitary, or productive versus leisure. Domains associated with subjective wellbeing, health or survival included social, leisure, productive, physical, intellectual, service and solitary activities. Informal social activity has accumulated the most evidence of an influence on wellbeing. Individual descriptors such as gender or physical functioning sometimes moderate these associations, while contextual variables such as choice, meaning or perceived quality play intervening roles. Differences in definitions and measurement make it difficult to draw inferences about this body of evidence on the associations between activity and wellbeing. Activity theory serves as shorthand for these associations, but gerontology must better integrate developmental and psychological constructs into a refined, comprehensive activity theory.

Socio-emotional selectivity theory posits that as individuals age, they desire less social stimulation and novelty, and tend to select close, reliable relationships to meet their emotional needs. Residence in congregate facilities affords social exposure, yet does not guarantee access to close relationships, so that loneliness may be a result. Further, the gerontology literature has suggested that loneliness in late life may be a risk factor for serious mental health concerns such as depression. This article examined data on loneliness and depressive symptoms from older adults aged 60-98, residing in two age-segregated independent living facilities. Overlap between those scoring in the depressed range on the Geriatric Depression Scale and those scoring more than one standard deviation above the mean on the UCLA Loneliness Scale was less than 50%, although zero-order correlation of the two continuous scores was moderately high. Potential risk and resilience factors were regressed on the continuous scores of the two scales in separate hierarchical multiple regression analyses. Depression was predicted by being older, number of chronic health conditions, grieving a recent loss, fewer neighbor visitors, less participation in organized social activities and less church attendance. Grieving a recent loss, receiving fewer visits from friends, and having a less extensive social network predicted loneliness. In addition, loneliness scores explained about 8% of the unique variance in depression scores, suggesting it is an independent risk factor for depressive symptoms. Loneliness scores were seen to be more widely dispersed in these respondents, with less variance explained by the available predictors. Suggestions are made for addressing loneliness in older adults as a means of preventing more serious mental health consequences.

The self-reported losses, grief reactions, and depressive symptoms experienced by caregivers in the early, middle, and late stages of dementia were assessed using open-ended descriptive questions and scaled measures including the Meuser-Marwit Caregiver Grief Inventory (MM-CGI; Marwit & Meuser, 2002). Ninety-nine caregivers associated with an urban Alzheimer’s Association chapter were surveyed by post. While there were moderate levels of grief and depression reported across the entire sample, those caring for individuals in the late stage of dementia reported significantly more symptoms of grief and depression than those in the early or middle stages. Responses to open-ended questions regarding losses and grief also differed across the groups in the three disease stages. The late-stage group’s comments most resembled bereavement, in keeping with the higher grief and depression scores among members of this group. Findings suggest there are different emotional tasks faced by caregivers as the dementia progresses, and it is important to acknowledge the particular losses and facilitate grieving at each stage.

High endorsement rates for the items in WAV and its bivariate correlations with age and health problems suggest WAV may be congruent with disengagement or depletion and may lead to over-identification of depression in older adults. Interpretation of the GDS and similar measures may be improved by use of subscale scores and consideration of age and health status of the respondent.

Although results should be considered preliminary, the use of these five subdimensions as subscales for scoring purposes may improve the precision and utility of the GDS as an assessment tool for older adults in health, mental health, and research contexts.