While loneliness for short periods of time is normal, prolonged loneliness has severe health risks. This study aims to discover what loneliness trajectories can be found in a cohort of adolescents, how belongingness to different groups may be associated with these trajectories, and the mental, physical, and academic consequences of these…

Objectives: From a longitudinal perspective, the direction of the relationship between cognitive functioning and well-being in old age, both conceptually and empirically, is still under debate. Therefore, we aimed to disentangle the different longitudinal relationship patterns proposed and whether those differed between young-old and old-old…

We investigated preparation for age-related changes from a multidimensional, life span perspective and administered a newly developed questionnaire to a large sample aged 30-80 years. Preparing for age-related changes was organized by life domains, with domain-specific types of preparation addressing obstacles and opportunities in the respective…

Using seven waves of data, collected twice a year from the 8th through the 11th grades in a low-resource community in Cape Town, South Africa, we aimed to describe the developmental trends in three specific leisure experiences (leisure boredom, new leisure interests, and healthy leisure) and substance use (cigarettes, alcohol, and marijuana)…

In contrast to the abundant research on family relationships during adolescence, the nature of family interactions during young adulthood remains comparatively unexamined. The current study explored ethnic differences in young adults' interactions with parents and siblings, the role of other activities in young adults' family interactions, and the…

Siblings' constructive and unstructured shared activities were examined as moderators of the links between first- and second-born siblings' adjustment across a two-year period in adolescence. Siblings (N = 189 dyads) reported on their depression, peer competency, self worth during home interviews, and their time together in constructive (e.g.,…