Lifespan trends in sociability: Measurement invariance and mean-level differences in ages 3 to 86 years

Although sociability is a fundamental dimension of temperament and personality, few studies have examined it over the lifespan. In this study, sociability was measured across ages 3 to 86 years after assessing for measurement invariance through the multigroup confirmatory factor framework and the more recent alignment method to ensure meaningful differences were assessed between different age groups. Using a repeated cross-sectional design, …