The structural stability of positive development across young adulthood: longitudinal findings from the Australian temperament project

The purpose of this study was to examine the structural stability of positive development across the 20s using data from one of Australia’s oldest population-based studies of social–emotional development. Positive development was indicated by civic action and engagement, trust and tolerance of others, trust in authorities and organizations, social competence, and life satisfaction. Results extend an earlier published model spanning 19–20 and 23–24 years by incorporating a new wave of data collected at 27–28 years. The age 27–28 latent model was gender invariant and a robust replication of our earlier model. Associations between the latent constructs in the mid- to late 20s were stronger than those in emerging adulthood. This work provides evidence of a cohesive higher order construct of positive development from late adolescence to the late 20s and has the potential to inform measurement of strength-based research and prevention programs in the emerging and young adult periods.